policy-templates

Firefox policies can be specified using the Group Policy templates on Windows, Intune on Windows, configuration profiles on macOS, or by creating a file called policies.json. On Windows, create a directory called distribution where the EXE is located and place the file there. On Mac, the file goes into Firefox.app/Contents/Resources/distribution. On Linux, the file goes into firefox/distribution, where firefox is the installation directory for firefox, which varies by distribution or you can specify system-wide policy by placing the file in /etc/firefox/policies.

Unfortunately, JSON files do not support comments, but you can add extra entries to the JSON to use as comments. You will see an error in about:policies, but the policies will still work properly. For example:

{
  "policies": {
    "Authentication": {
      "SPNEGO": ["mydomain.com", "https://myotherdomain.com"]
    }
    "Authentication_Comment": "These domains are required for us"
  }
}
Policy Name Description
3rdparty Set policies that WebExtensions can access via chrome.storage.managed.
AllowedDomainsForApps Define domains allowed to access Google Workspace.
AppAutoUpdate Enable or disable automatic application update.
AppUpdatePin Prevent Firefox from being updated beyond the specified version.
AppUpdateURL Change the URL for application update.
Authentication Configure sites that support integrated authentication.
AutoLaunchProtocolsFromOrigins Define a list of external protocols that can be used from listed origins without prompting the user.
BackgroundAppUpdate Enable or disable the background updater (Windows only).
BlockAboutAddons Block access to the Add-ons Manager (about:addons).
BlockAboutConfig Block access to about:config.
BlockAboutProfiles Block access to About Profiles (about:profiles).
BlockAboutSupport Block access to Troubleshooting Information (about:support).
Bookmarks Add bookmarks in either the bookmarks toolbar or menu.
CaptivePortal Enable or disable the detection of captive portals.
Certificates  
Certificates -> ImportEnterpriseRoots Trust certificates that have been added to the operating system certificate store by a user or administrator.
Certificates -> Install Install certificates into the Firefox certificate store.
Containers Set policies related to containers.
Cookies Configure cookie preferences.
DefaultDownloadDirectory Set the default download directory.
DisableAppUpdate Turn off application updates.
DisableBuiltinPDFViewer Disable the built in PDF viewer.
DisabledCiphers Disable ciphers.
DisableDefaultBrowserAgent Prevent the default browser agent from taking any actions (Windows only).
DisableDeveloperTools Remove access to all developer tools.
DisableFeedbackCommands Disable the menus for reporting sites.
DisableFirefoxAccounts Disable Firefox Accounts integration (Sync).
DisableFirefoxScreenshots Remove access to Firefox Screenshots.
DisableFirefoxStudies Disable Firefox studies (Shield).
DisableForgetButton Disable the “Forget” button.
DisableFormHistory Turn off saving information on web forms and the search bar.
DisableMasterPasswordCreation Remove the master password functionality.
DisablePasswordReveal Do not allow passwords to be revealed in saved logins.
DisablePocket Remove Pocket in the Firefox UI.
DisablePrivateBrowsing Remove access to private browsing.
DisableProfileImport Disables the “Import data from another browser” option in the bookmarks window.
DisableProfileRefresh Disable the Refresh Firefox button on about:support and support.mozilla.org
DisableSafeMode Disable safe mode within the browser.
DisableSecurityBypass Prevent the user from bypassing security in certain cases.
DisableSetDesktopBackground Remove the “Set As Desktop Background…” menuitem when right clicking on an image.
DisableSystemAddonUpdate Prevent system add-ons from being installed or updated.
DisableTelemetry DisableTelemetry
DisableThirdPartyModuleBlocking Do not allow blocking third-party modules.
DisplayBookmarksToolbar Set the initial state of the bookmarks toolbar.
DisplayMenuBar Set the state of the menubar.
DNSOverHTTPS Configure DNS over HTTPS.
DontCheckDefaultBrowser Don’t check if Firefox is the default browser at startup.
DownloadDirectory Set and lock the download directory.
EnableTrackingProtection Configure tracking protection.
EncryptedMediaExtensions Enable or disable Encrypted Media Extensions and optionally lock it.
EnterprisePoliciesEnabled Enable policy support on macOS.
ExemptDomainFileTypePairsFromFileTypeDownloadWarnings Disable warnings based on file extension for specific file types on domains.
Extensions Control the installation, uninstallation and locking of extensions.
ExtensionSettings Manage all aspects of extensions.
ExtensionUpdate Control extension updates.
FirefoxHome Customize the Firefox Home page.
FirefoxSuggest Customize Firefox Suggest.
GoToIntranetSiteForSingleWordEntryInAddressBar Force direct intranet site navigation instead of searching when typing single word entries in the address bar.
Handlers Configure default application handlers.
HardwareAcceleration Control hardware acceleration.
Homepage Configure the default homepage and how Firefox starts.
InstallAddonsPermission Configure the default extension install policy as well as origins for extension installs are allowed.
LegacyProfiles Disable the feature enforcing a separate profile for each installation.
LegacySameSiteCookieBehaviorEnabled Enable default legacy SameSite cookie behavior setting.
LegacySameSiteCookieBehaviorEnabledForDomainList Revert to legacy SameSite behavior for cookies on specified sites.
LocalFileLinks Enable linking to local files by origin.
ManagedBookmarks Configures a list of bookmarks managed by an administrator that cannot be changed by the user.
ManualAppUpdateOnly Allow manual updates only and do not notify the user about updates.
NetworkPrediction Enable or disable network prediction (DNS prefetching).
NewTabPage Enable or disable the New Tab page.
NoDefaultBookmarks Disable the creation of default bookmarks.
OfferToSaveLogins Control whether or not Firefox offers to save passwords.
OfferToSaveLoginsDefault Set the default value for whether or not Firefox offers to save passwords.
OverrideFirstRunPage Override the first run page.
OverridePostUpdatePage Override the upgrade page.
PasswordManagerEnabled Remove (some) access to the password manager.
PasswordManagerExceptions Prevent Firefox from saving passwords for specific sites.
PDFjs Disable or configure PDF.js, the built-in PDF viewer.
Permissions Set permissions associated with camera, microphone, location, and notifications.
PictureInPicture Enable or disable Picture-in-Picture.
PopupBlocking Configure the default pop-up window policy as well as origins for which pop-up windows are allowed.
Preferences Set and lock preferences.
PrimaryPassword Require or prevent using a primary (formerly master) password.
PrintingEnabled Enable or disable printing.
PromptForDownloadLocation Ask where to save each file before downloading.
Proxy Configure proxy settings.
RequestedLocales Set the the list of requested locales for the application in order of preference.
SanitizeOnShutdown (All) Clear all data on shutdown.
SanitizeOnShutdown (Selective) Clear data on shutdown.
SearchBar Set whether or not search bar is displayed.
SearchEngines  
SearchEngines -> Add Add new search engines.
SearchEngines -> Default Set the default search engine.
SearchEngines -> PreventInstalls Prevent installing search engines from webpages.
SearchEngines -> Remove Hide built-in search engines.
SearchSuggestEnabled Enable search suggestions.
SecurityDevices Install PKCS #11 modules.
ShowHomeButton Show the home button on the toolbar.
SSLVersionMax Set and lock the maximum version of TLS.
SSLVersionMin Set and lock the minimum version of TLS.
StartDownloadsInTempDirectory Force downloads to start off in a local, temporary location rather than the default download directory.
SupportMenu Add a menuitem to the help menu for specifying support information.
UserMessaging Don’t show certain messages to the user.
UseSystemPrintDialog Print using the system print dialog instead of print preview.
WebsiteFilter Block websites from being visited.
WindowsSSO Allow Windows single sign-on for Microsoft, work, and school accounts.

3rdparty

Allow WebExtensions to configure policy. For more information, see Adding policy support to your extension.

For GPO and Intune, the extension developer should provide an ADMX file.

Compatibility: Firefox 68
CCK2 Equivalent: N/A
Preferences Affected: N/A

macOS

<dict>
  <key>3rdparty</key>
  <dict>
    <key>Extensions</key>
    <dict>
      <key>uBlock0@raymondhill.net</key>
      <dict>
        <key>adminSettings</key>
        <dict>
          <key>selectedFilterLists</key>
          <array>
            <string>ublock-privacy</string>
            <string>ublock-badware</string>
            <string>ublock-filters</string>
            <string>user-filters</string>
          </array>
        </dict>
      </dict>
    </dict>
  </dict>
</dict>

policies.json

{
  "policies": {
    "3rdparty": {
      "Extensions": {
        "uBlock0@raymondhill.net": {
          "adminSettings": {
            "selectedFilterLists": [
              "ublock-privacy",
              "ublock-badware",
              "ublock-filters",
              "user-filters"
            ]
          }
        }
      }
    }
  }
}

AllowedDomainsForApps

Define domains allowed to access Google Workspace.

This policy is based on the Chrome policy of the same name.

If this policy is enabled, users can only access Google Workspace using accounts from the specified domains. If you want to allow Gmail, you can add consumer_accounts to the list.

Compatibility: Firefox 89, Firefox ESR 78.11
CCK2 Equivalent: N/A
Preferences Affected: N/A

Windows (GPO)

Software\Policies\Mozilla\Firefox\AllowedDomainsForApps = "managedfirefox.com,example.com"

Windows (Intune)

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/AllowedDomainsForApps

Value (string):

<enabled/>
<data id="AllowedDomainsForApps" value="managedfirefox.com,example.com"/>

macOS

<dict>
  <key>AllowedDomainsForApps</key>
  <string>managedfirefox.com,example.com</string>
</dict>

policies.json

{
  "policies": {
    "AllowedDomainsForApps": "managedfirefox.com,example.com"
  }
}

AppAutoUpdate

Enable or disable automatic application update.

If set to true, application updates are installed without user approval within Firefox. The operating system might still require approval.

If set to false, application updates are downloaded but the user can choose when to install the update.

If you have disabled updates via DisableAppUpdate, this policy has no effect.

Compatibility: Firefox 75, Firefox ESR 68.7
CCK2 Equivalent: N/A
Preferences Affected: app.update.auto

Windows (GPO)

Software\Policies\Mozilla\Firefox\AppAutoUpdate = 0x1 | 0x0

Windows (Intune)

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/AppAutoUpdate

Value (string):

<enabled/> or <disabled/>

macOS

<dict>
  <key>AppAutoUpdate</key>
  <true/> | <false/>
</dict>

policies.json

{
  "policies": {
    "AppAutoUpdate": true | false
  }
}

AppUpdatePin

Prevent Firefox from being updated beyond the specified version.

You can specify the any version as xx. and Firefox will be updated with all minor versions, but will not be updated beyond the major version.

You can also specify the version as xx.xx and Firefox will be updated with all patch versions, but will not be updated beyond the minor version.

You should specify a version that exists or is guaranteed to exist. If you specify a version that doesn’t end up existing, Firefox will update beyond that version.

Compatibility: Firefox 102,
CCK2 Equivalent: N/A
Preferences Affected: N/A

Windows (GPO)

Software\Policies\Mozilla\Firefox\AppUpdatePin = "106."

Windows (Intune)

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/AppUpdatePin

Value (string):

<enabled/>
<data id="AppUpdatePin" value="106."/>

macOS

<dict>
  <key>AppUpdatePin</key>
  <string>106.</string>
</dict>

policies.json

{
  "policies": {
    "AppUpdatePin": "106."
  }
}

AppUpdateURL

Change the URL for application update if you are providing Firefox updates from a custom update server.

Compatibility: Firefox 62, Firefox ESR 60.2
CCK2 Equivalent: N/A
Preferences Affected: app.update.url

Windows (GPO)

Software\Policies\Mozilla\Firefox\AppUpdateURL = "https://yoursite.com"

Windows (Intune)

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/AppUpdateURL

Value (string):

<enabled/>
<data id="AppUpdateURL" value="https://yoursite.com"/>

macOS

<dict>
  <key>AppUpdateURL</key>
  <string>https://yoursite.com</string>
</dict>

policies.json

{
  "policies": {
    "AppUpdateURL": "https://yoursite.com"
  }
}

Authentication

Configure sites that support integrated authentication.

See Integrated authentication for more information.

PrivateBrowsing enables integrated authentication in private browsing.

Compatibility: Firefox 60, Firefox ESR 60 (AllowNonFQDN added in 62/60.2, AllowProxies added in 70/68.2, Locked added in 71/68.3, PrivateBrowsing added in 77/68.9)
CCK2 Equivalent: N/A
Preferences Affected: network.negotiate-auth.trusted-uris,network.negotiate-auth.delegation-uris,network.automatic-ntlm-auth.trusted-uris,network.automatic-ntlm-auth.allow-non-fqdn,network.negotiate-auth.allow-non-fqdn,network.automatic-ntlm-auth.allow-proxies,network.negotiate-auth.allow-proxies,network.auth.private-browsing-sso

Windows (GPO)

Software\Policies\Mozilla\Firefox\Authentication\SPNEGO\1 = "mydomain.com"
Software\Policies\Mozilla\Firefox\Authentication\SPNEGO\2 = "https://myotherdomain.com"
Software\Policies\Mozilla\Firefox\Authentication\Delegated\1 = "mydomain.com"
Software\Policies\Mozilla\Firefox\Authentication\Delegated\2 = "https://myotherdomain.com"
Software\Policies\Mozilla\Firefox\Authentication\NTLM\1 = "mydomain.com"
Software\Policies\Mozilla\Firefox\Authentication\NTLM\2 = "https://myotherdomain.com"
Software\Policies\Mozilla\Firefox\Authentication\AllowNonFQDN\SPNEGO = 0x1 | 0x0
Software\Policies\Mozilla\Firefox\Authentication\AllowNonFQDN\NTLM = 0x1 | 0x0
Software\Policies\Mozilla\Firefox\Authentication\AllowProxies\SPNEGO = 0x1 | 0x0
Software\Policies\Mozilla\Firefox\Authentication\AllowProxies\NTLM = 0x1 | 0x0
Software\Policies\Mozilla\Firefox\Authentication\Locked = 0x1 | 0x0
Software\Policies\Mozilla\Firefox\Authentication\PrivateBrowsing = 0x1 | 0x0

Windows (Intune)

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Authentication/Authentication_SPNEGO

Value (string):

<enabled/>
<data id="Authentication" value="1&#xF000;mydomain&#xF000;2&#xF000;https://myotherdomain.com"/>

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Authentication/Authentication_Delegated

Value (string):

<enabled/>
<data id="Authentication" value="1&#xF000;mydomain&#xF000;2&#xF000;https://myotherdomain.com"/>

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Authentication/Authentication_NTLM

Value (string):

<enabled/>
<data id="Authentication" value="1&#xF000;mydomain&#xF000;2&#xF000;https://myotherdomain.com"/>

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Authentication/Authentication_AllowNonFQDN

Value (string):

<enabled/>
<data id="Authentication_AllowNonFQDN_NTLM" value="true | false"/>
<data id="Authentication_AllowNonFQDN_SPNEGO" value="true | false"/>

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Authentication/Authentication_Locked

Value (string):

<enabled/> or <disabled/>

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Authentication/Authentication_PrivateBrowsing

Value (string):

<enabled/> or <disabled/>

macOS

<dict>
  <key>Authentication</key>
  <dict>
    <key>SPNEGO</key>
    <array>
      <string>mydomain.com</string>
      <string>https://myotherdomain.com</string>
    </array>
    <key>Delegated</key>
    <array>
      <string>mydomain.com</string>
      <string>https://myotherdomain.com</string>
    </array>
    <key>NTLM</key>
    <array>
      <string>mydomain.com</string>
      <string>https://myotherdomain.com</string>
    </array>
    <key>AllowNonFQDN</key>
      <dict>
      <key>SPNEGO</key>
      <true/> | <false/>
      <key>NTLM</key>
      <true/> | <false/>
    </dict>
    <key>AllowProxies</key>
      <dict>
      <key>SPNEGO</key>
      <true/> | <false/>
      <key>NTLM</key>
      <true/> | <false/>
    </dict>
    <key>Locked</key>
    <true/> | <false/>
    <key>PrivateBrowsing</key>
    <true/> | <false/>
  </dict>
</dict>

policies.json

{
  "policies": {
    "Authentication": {
      "SPNEGO": ["mydomain.com", "https://myotherdomain.com"],
      "Delegated": ["mydomain.com", "https://myotherdomain.com"],
      "NTLM": ["mydomain.com", "https://myotherdomain.com"],
      "AllowNonFQDN": {
        "SPNEGO": true | false,
        "NTLM": true | false
      },
      "AllowProxies": {
        "SPNEGO": true | false,
        "NTLM": true | false
      },
      "Locked": true | false,
      "PrivateBrowsing": true | false
    }
  }
}

AutoLaunchProtocolsFromOrigins

Define a list of external protocols that can be used from listed origins without prompting the user. The origin is the scheme plus the hostname.

The syntax of this policy is exactly the same as the Chrome AutoLaunchProtocolsFromOrigins policy except that you can only use valid origins (not just hostnames). This also means that you cannot specify an asterisk for all origins.

The schema is:

{
 "items": {
  "properties": {
   "allowed_origins": {
    "items": {
     "type": "string"
    },
    "type": "array"
   },
   "protocol": {
    "type": "string"
   }
  },
  "required": [
   "protocol",
   "allowed_origins"
  ],
  "type": "object"
 },
 "type": "array"
}

Compatibility: Firefox 90, Firefox ESR 78.12
CCK2 Equivalent: N/A
Preferences Affected: N/A

Windows (GPO)

Software\Policies\Mozilla\Firefox\AutoLaunchProtocolsFromOrigins (REG_MULTI_SZ) =

[
  {
    "protocol": "zoommtg",
    "allowed_origins": [
      "https://somesite.zoom.us"
    ]
  }
]

Windows (Intune)

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/AutoLaunchProtocolsFromOrigins

Value (string):

<enabled/>
<data id="JSON" value='
[
  {
    "protocol": "zoommtg",
    "allowed_origins": [
      "https://somesite.zoom.us"
    ]
  }
]'/>

macOS

<dict>
  <key>AutoLaunchProtocolsFromOrigins</key>
  <array>
    <dict>
      <key>protocol</key>
      <string>zoommtg</string>
      <key>allowed_origins</key>
      <array>
        <string>https://somesite.zoom.us</string>
      </array>
    </dict>
  </array>
</dict>

policies.json

{
  "policies": {
    "AutoLaunchProtocolsFromOrigins": [{
      "protocol": "zoommtg",
      "allowed_origins": [
        "https://somesite.zoom.us"
      ]
    }]
  }
}

BackgroundAppUpdate

Enable or disable automatic application update in the background, when the application is not running.

If set to true, application updates may be installed (without user approval) in the background, even when the application is not running. The operating system might still require approval.

If set to false, the application will not try to install updates when the application is not running.

If you have disabled updates via DisableAppUpdate or disabled automatic updates via AppAutoUpdate, this policy has no effect.

If you are having trouble getting the background task to run, verify your configuration with the “Requirements to run” section in this support document.

Compatibility: Firefox 90 (Windows only)
CCK2 Equivalent: N/A
Preferences Affected: app.update.background.enabled

Windows (GPO)

Software\Policies\Mozilla\Firefox\BackgroundAppUpdate = 0x1 | 0x0

Windows (Intune)

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/BackgroundAppUpdate

Value (string):

<enabled/> or <disabled/>

macOS

<dict>
  <key>BackgroundAppUpdate</key>
  <true/> | <false/>
</dict>

policies.json

{
  "policies": {
    "BackgroundAppUpdate": true | false
  }
}

BlockAboutAddons

Block access to the Add-ons Manager (about:addons).

Compatibility: Firefox 60, Firefox ESR 60
CCK2 Equivalent: disableAddonsManager
Preferences Affected: N/A

Windows (GPO)

Software\Policies\Mozilla\Firefox\BlockAboutAddons = 0x1 | 0x0

Windows (Intune)

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/BlockAboutAddons

Value (string):

<enabled/> or <disabled/>

macOS

<dict>
  <key>BlockAboutAddons</key>
  <true/> | <false/>
</dict>

policies.json

{
  "policies": {
    "BlockAboutAddons": true | false
  }
}

BlockAboutConfig

Block access to about:config.

Compatibility: Firefox 60, Firefox ESR 60
CCK2 Equivalent: disableAboutConfig
Preferences Affected: N/A

Windows (GPO)

Software\Policies\Mozilla\Firefox\BlockAboutConfig = 0x1 | 0x0

Windows (Intune)

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/BlockAboutConfig

Value (string):

<enabled/> or <disabled/>

macOS

<dict>
  <key>BlockAboutConfig</key>
  <true/> | <false/>
</dict>

policies.json

{
  "policies": {
    "BlockAboutConfig": true | false
  }
}

BlockAboutProfiles

Block access to About Profiles (about:profiles).

Compatibility: Firefox 60, Firefox ESR 60
CCK2 Equivalent: disableAboutProfiles
Preferences Affected: N/A

Windows (GPO)

Software\Policies\Mozilla\Firefox\BlockAboutProfiles = 0x1 | 0x0

Windows (Intune)

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/BlockAboutProfiles

Value (string):

<enabled/> or <disabled/>

macOS

<dict>
  <key>BlockAboutProfiles</key>
  <true/> | <false/>
</dict>

policies.json

{
  "policies": {
    "BlockAboutProfiles": true | false
  }
}

BlockAboutSupport

Block access to Troubleshooting Information (about:support).

Compatibility: Firefox 60, Firefox ESR 60
CCK2 Equivalent: disableAboutSupport
Preferences Affected: N/A

Windows (GPO)

Software\Policies\Mozilla\Firefox\BlockAboutSupport = 0x1 | 0x0

Windows (Intune)

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/BlockAboutSupport

Value (string):

<enabled/> or <disabled/>

macOS

<dict>
  <key>BlockAboutSupport</key>
  <true/> | <false/>
</dict>

policies.json

{
  "policies": {
    "BlockAboutSupport": true | false
  }
}

Bookmarks

Note: ManagedBookmarks is the new recommended way to add bookmarks. This policy will continue to be supported.

Add bookmarks in either the bookmarks toolbar or menu. Only Title and URL are required. If Placement is not specified, the bookmark will be placed on the toolbar. If Folder is specified, it is automatically created and bookmarks with the same folder name are grouped together.

If you want to clear all bookmarks set with this policy, you can set the value to an empty array ([]). This can be on Windows via the new Bookmarks (JSON) policy available with GPO and Intune.

Compatibility: Firefox 60, Firefox ESR 60
CCK2 Equivalent: bookmarks.toolbar,bookmarks.menu
Preferences Affected: N/A

Windows (GPO)

Software\Policies\Mozilla\Firefox\Bookmarks\1\Title = "Example"
Software\Policies\Mozilla\Firefox\Bookmarks\1\URL = "https://example.com"
Software\Policies\Mozilla\Firefox\Bookmarks\1\Favicon = "https://example.com/favicon.ico"
Software\Policies\Mozilla\Firefox\Bookmarks\1\Placement = "toolbar" | "menu"
Software\Policies\Mozilla\Firefox\Bookmarks\1\Folder = "FolderName"

Software\Policies\Mozilla\Firefox\Bookmarks (REG_MULTI_SZ) =

[]


Windows (Intune)

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Bookmarks/Bookmark01

Value (string):

<enabled/>
<data id="BookmarkTitle" value="Example"/>
<data id="BookmarkURL" value="https://example.com"/>
<data id="BookmarkFavicon" value="https://example.com/favicon.ico"/>
<data id="BookmarkPlacement" value="toolbar | menu"/>
<data id="BookmarkFolder" value="FolderName"/>

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/Bookmarks

Value (string):

<enabled/>
<data id="JSON" value='[]'/>

macOS

<dict>
  <key>Bookmarks</key>
  <array>
    <dict>
      <key>Title</key>
      <string>Example</string>
      <key>URL</key>
      <string>https://example.com</string>
      <key>Favicon</key>
      <string>https://example.com/favicon.ico</string>
      <key>Placement</key>
      <string>toolbar | menu</string>
      <key>Folder</key>
      <string>FolderName</string>
    </dict>
  </array>
</dict>

policies.json

{
  "policies": {
    "Bookmarks": [
      {
        "Title": "Example",
        "URL": "https://example.com",
        "Favicon": "https://example.com/favicon.ico",
        "Placement": "toolbar" | "menu",
        "Folder": "FolderName"
      }
    ]
  }
}

CaptivePortal

Enable or disable the detection of captive portals.

Compatibility: Firefox 67, Firefox ESR 60.7
CCK2 Equivalent: N/A
Preferences Affected: network.captive-portal-service.enabled

Windows (GPO)

Software\Policies\Mozilla\Firefox\CaptivePortal = 0x1 | 0x0

Windows (Intune)

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/CaptivePortal

Value (string):

<enabled/> or <disabled/>

macOS

<dict>
  <key>CaptivePortal</key>
  <true/> | <false/>
</dict>

policies.json

{
  "policies": {
    "CaptivePortal": true | false
  }
}

Certificates

Certificates | ImportEnterpriseRoots

Trust certificates that have been added to the operating system certificate store by a user or administrator.

Note: This policy only works on Windows and macOS. For Linux discussion, see bug 1600509.

See https://support.mozilla.org/kb/setting-certificate-authorities-firefox for more detail.

Compatibility: Firefox 60, Firefox ESR 60 (macOS support in Firefox 63, Firefox ESR 68)
CCK2 Equivalent: N/A
Preferences Affected: security.enterprise_roots.enabled

Windows (GPO)

Software\Policies\Mozilla\Firefox\Certificates\ImportEnterpriseRoots = 0x1 | 0x0

Windows (Intune)

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Certificates/Certificates_ImportEnterpriseRoots

Value (string):

<enabled/> or <disabled/>

macOS

<dict>
  <key>Certificates</key>
  <dict>
    <key>ImportEnterpriseRoots</key>
    <true/> | <false/>
  </dict>
</dict>

policies.json

{
  "policies": {
    "Certificates": {
      "ImportEnterpriseRoots": true | false
    }
  }
}

Certificates | Install

Install certificates into the Firefox certificate store. If only a filename is specified, Firefox searches for the file in the following locations:

Starting with Firefox 65, Firefox 60.5 ESR, a fully qualified path can be used, including UNC paths. You should use the native path style for your operating system. We do not support using %USERPROFILE% or other environment variables on Windows.

If you are specifying the path in the policies.json file on Windows, you need to escape your backslashes (\\) which means that for UNC paths, you need to escape both (\\\\). If you use group policy, you only need one backslash.

Certificates are installed using the trust string CT,CT,.

Binary (DER) and ASCII (PEM) certificates are both supported.

Compatibility: Firefox 64, Firefox ESR 64
CCK2 Equivalent: certs.ca
Preferences Affected: N/A

Windows (GPO)

Software\Policies\Mozilla\Firefox\Certificates\Install\1 = "cert1.der"
Software\Policies\Mozilla\Firefox\Certificates\Install\2 = "C:\Users\username\cert2.pem"

Windows (Intune)

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Certificates/Certificates_Install

Value (string):

<enabled/>
<data id="Certificates_Install" value="1&#xF000;cert1.der&#xF000;2&#xF000;C:\Users\username\cert2.pem"/>

macOS

<dict>
  <key>Certificates</key>
  <dict>
    <key>Install</key>
    <array>
      <string>cert1.der</string>
      <string>/Users/username/cert2.pem</string>
    </array>
  </dict>
</dict>

policies.json

{
  "policies": {
    "Certificates": {
      "Install": ["cert1.der", "/home/username/cert2.pem"]
    }
  }
}

Containers

Set policies related to containers.

Currently you can set the initial set of containers.

For each container, you can specify the name, icon, and color.

Name Description
name Name of container
icon Can be fingerprint, briefcase, dollar, cart, vacation, gift, food, fruit, pet, tree, chill, circle, fence
color Can be blue, turquoise, green, yellow, orange, red, pink, purple, toolbar

Compatibility: Firefox 113
CCK2 Equivalent: N/A
Preferences Affected: N/A

Windows (GPO)

Software\Policies\Mozilla\Firefox\Containers (REG_MULTI_SZ) =

{
  "Default": [
    {
      "name": "My container",
      "icon": "pet",
      "color": "turquoise"
    }
  ]
}

Windows (Intune)

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/Containers

Value (string):

<enabled/>
<data id="JSON" value='
{
  "Default": [
    {
      "name": "My container",
      "icon": "pet",
      "color": "turquoise"
    }
  ]
}
'/>

macOS

<dict>
  <key>Default</key>
  <dict>
    <key>Containers</key>
    <array>
      <dict>
        <key>name</key>
        <string>My container</string>
        <key>icon</key>
        <string>pet</string>
        <key>color</key>
        <string>turquoise</string>
      </dict>
    </array>
  </dict>
</dict>

policies.json

{
  "policies": {
    "Containers": {
      "Default": [
        {
          "name": "My container",
          "icon": "pet",
          "color": "turquoise"
        }
      ]
    }
  }
}

Cookies

Configure cookie preferences.

Allow is a list of origins (not domains) where cookies are always allowed. You must include http or https.

AllowSession is a list of origins (not domains) where cookies are only allowed for the current session. You must include http or https.

Block is a list of origins (not domains) where cookies are always blocked. You must include http or https.

Behavior sets the default behavior for cookies based on the values below.

BehaviorPrivateBrowsing sets the default behavior for cookies in private browsing based on the values below.

Value Description
accept Accept all cookies
reject-foreign Reject third party cookies
reject Reject all cookies
limit-foreign Reject third party cookies for sites you haven’t visited
reject-tracker Reject cookies for known trackers (default)
reject-tracker-and-partition-foreign Reject cookies for known trackers and partition third-party cookies (Total Cookie Protection) (default for private browsing)

Locked prevents the user from changing cookie preferences.

Compatibility: Firefox 60, Firefox ESR 60 (RejectTracker added in Firefox 63, AllowSession added in Firefox 79/78.1, Behavior added in Firefox 95/91.4)
CCK2 Equivalent: N/A
Preferences Affected: network.cookie.cookieBehavior, network.cookie.cookieBehavior.pbmode, network.cookie.lifetimePolicy

Windows (GPO)

Software\Policies\Mozilla\Firefox\Cookies\Allow\1 = "https://example.com"
Software\Policies\Mozilla\Firefox\Cookies\AllowSession\1 = "https://example.edu"
Software\Policies\Mozilla\Firefox\Cookies\Block\1 = "https://example.org"
Software\Policies\Mozilla\Firefox\Cookies\Default = 0x1 | 0x0
Software\Policies\Mozilla\Firefox\Cookies\AcceptThirdParty = "always" | "never" | "from-visited"
Software\Policies\Mozilla\Firefox\Cookies\ExpireAtSessionEnd = 0x1 | 0x0
Software\Policies\Mozilla\Firefox\Cookies\RejectTracker = 0x1 | 0x0
Software\Policies\Mozilla\Firefox\Cookies\Behavior = "accept" | "reject-foreign" | "reject" | "limit-foreign" | "reject-tracker" | "reject-tracker-and-partition-foreign"
Software\Policies\Mozilla\Firefox\Cookies\BehaviorPrivateBrowsing = "accept" | "reject-foreign" | "reject" | "limit-foreign" | "reject-tracker" | "reject-tracker-and-partition-foreign"
Software\Policies\Mozilla\Firefox\Cookies\Locked = 0x1 | 0x0

Windows (Intune)

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Cookies/Cookies_Allow

Value (string):

<enabled/>
<data id="Permissions" value="1&#xF000;https://example.com"/>

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Cookies/Cookies_AllowSession

Value (string):

<enabled/>
<data id="Permissions" value="1&#xF000;https://example.edu"/>

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Cookies/Cookies_Block

Value (string):

<enabled/>
<data id="Permissions" value="1&#xF000;https://example.org"/>

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Cookies/Cookies_Default

Value (string):

<enabled/> or <disabled/>

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Cookies/Cookies_AcceptThirdParty

Value (string):

<enabled/>
<data id="Cookies_AcceptThirdParty" value="always | never | from-visited"/>

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Cookies/Cookies_ExpireAtSessionEnd

Value (string):

<enabled/> or <disabled/>

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Cookies/Cookies_RejectTracker

Value (string):

<enabled/> or <disabled/>

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Cookies/Cookies_Locked

Value (string):

<enabled/> or <disabled/>

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Cookies/Cookies_Behavior

Value (string):

<enabled/>
<data id="Cookies_Behavior" value="accept | reject-foreign | reject | limit-foreign | reject-tracker | reject-tracker-and-partition-foreign"/>

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Cookies/Cookies_BehaviorPrivateBrowsing

Value (string):

<enabled/>
<data id="Cookies_BehaviorPrivateBrowsing" value="accept | reject-foreign | reject | limit-foreign | reject-tracker | reject-tracker-and-partition-foreign"/>

macOS

<dict>
  <key>Cookies</key>
  <dict>
    <key>Allow</key>
    <array>
      <string>http://example.com</string>
    </array>
    <key>AllowSession</key>
    <array>
      <string>http://example.edu</string>
    </array>
    <key>Block</key>
    <array>
      <string>http://example.org</string>
    </array>
    <key>Default</key>
    <true/> | <false/>
    <key>AcceptThirdParty</key>
    <string>always | never | from-visited</string>
    <key>ExpireAtSessionEnd</key>
    <true/> | <false/>
    <key>RejectTracker</key>
    <true/> | <false/>
    <key>Locked</key>
    <true/> | <false/>
    <key>Behavior</key>
    <string>accept | reject-foreign | reject | limit-foreign | reject-tracker | reject-tracker-and-partition-foreign</string>
    <key>BehaviorPrivateBrowsing</key>
    <string>accept | reject-foreign | reject | limit-foreign | reject-tracker | reject-tracker-and-partition-foreign</string>
  </dict>
</dict>

policies.json

{
  "policies": {
    "Cookies": {
      "Allow": ["http://example.org/"],
      "AllowSession": ["http://example.edu/"],
      "Block": ["http://example.edu/"],
      "Default": true | false,
      "AcceptThirdParty": "always" | "never" | "from-visited",
      "ExpireAtSessionEnd": true | false,
      "RejectTracker": true | false,
      "Locked": true | false,
      "Behavior": "accept" | "reject-foreign" | "reject" | "limit-foreign" | "reject-tracker" | "reject-tracker-and-partition-foreign",
      "BehaviorPrivateBrowsing": "accept" | "reject-foreign" | "reject" | "limit-foreign" | "reject-tracker" | "reject-tracker-and-partition-foreign",
    }
  }
}

DefaultDownloadDirectory

Set the default download directory.

You can use ${home} for the native home directory.

Compatibility: Firefox 68, Firefox ESR 68
CCK2 Equivalent: N/A
Preferences Affected: browser.download.dir, browser.download.folderList

Windows (GPO)

Software\Policies\Mozilla\Firefox\DefaultDownloadDirectory = "${home}\Downloads"

Windows (Intune)

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DefaultDownloadDirectory

Value (string):

<enabled/>
<data id="Preferences_String" value="${home}\Downloads"/>

macOS

<dict>
  <key>DefaultDownloadDirectory</key>
  <string>${home}/Downloads</string>
</dict>

policies.json (macOS and Linux)

{
  "policies": {
    "DefaultDownloadDirectory": "${home}/Downloads"
  }
}

policies.json (Windows)

{
  "policies": {
    "DefaultDownloadDirectory": "${home}\\Downloads"
  }
}

DisableAppUpdate

Turn off application updates within Firefox.

Compatibility: Firefox 60, Firefox ESR 60
CCK2 Equivalent: disableFirefoxUpdates
Preferences Affected: N/A

Windows (GPO)

Software\Policies\Mozilla\Firefox\DisableAppUpdate = 0x1 | 0x0

Windows (Intune)

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DisableAppUpdate

Value (string):

<enabled/> or <disabled/>

macOS

<dict>
  <key>DisableAppUpdate</key>
  <true/> | <false/>
</dict>

policies.json

{
  "policies": {
    "DisableAppUpdate": true | false
  }
}

DisableBuiltinPDFViewer

Disable the built in PDF viewer. PDF files are downloaded and sent externally.

Compatibility: Firefox 60, Firefox ESR 60
CCK2 Equivalent: disablePDFjs
Preferences Affected: pdfjs.disabled

Windows (GPO)

Software\Policies\Mozilla\Firefox\DisableBuiltinPDFViewer = 0x1 | 0x0

Windows (Intune)

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DisableBuiltinPDFViewer

Value (string):

<enabled/> or <disabled/>

macOS

<dict>
  <key>DisableBuiltinPDFViewer</key>
  <true/> | <false/>
</dict>

policies.json

{
  "policies": {
    "DisableBuiltinPDFViewer": true | false
  }
}

DisabledCiphers

Disable specific cryptographic ciphers, listed below.

TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256
TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256
TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256
TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256
TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384
TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384
TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA
TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA
TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA
TLS_DHE_RSA_WITH_AES_128_CBC_SHA
TLS_DHE_RSA_WITH_AES_256_CBC_SHA
TLS_RSA_WITH_AES_128_GCM_SHA256
TLS_RSA_WITH_AES_256_GCM_SHA384
TLS_RSA_WITH_AES_128_CBC_SHA
TLS_RSA_WITH_AES_256_CBC_SHA
TLS_RSA_WITH_3DES_EDE_CBC_SHA

Preferences Affected: security.ssl3.ecdhe_rsa_aes_128_gcm_sha256, security.ssl3.ecdhe_ecdsa_aes_128_gcm_sha256, security.ssl3.ecdhe_ecdsa_chacha20_poly1305_sha256, security.ssl3.ecdhe_rsa_chacha20_poly1305_sha256, security.ssl3.ecdhe_ecdsa_aes_256_gcm_sha384, security.ssl3.ecdhe_rsa_aes_256_gcm_sha384, security.ssl3.ecdhe_rsa_aes_128_sha, security.ssl3.ecdhe_ecdsa_aes_128_sha, security.ssl3.ecdhe_rsa_aes_256_sha, security.ssl3.ecdhe_ecdsa_aes_256_sha, security.ssl3.dhe_rsa_aes_128_sha, security.ssl3.dhe_rsa_aes_256_sha, security.ssl3.rsa_aes_128_gcm_sha256, security.ssl3.rsa_aes_256_gcm_sha384, security.ssl3.rsa_aes_128_sha, security.ssl3.rsa_aes_256_sha, security.ssl3.deprecated.rsa_des_ede3_sha


Note:

This policy was updated in Firefox 78 to allow enabling ciphers as well. Setting the value to true disables the cipher, setting the value to false enables the cipher. Previously setting the value to true or false disabled the cipher.


Compatibility: Firefox 76, Firefox ESR 68.8 (TLS_RSA_WITH_AES_128_GCM_SHA256 and TLS_RSA_WITH_AES_256_GCM_SHA384 were added in Firefox 78, TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA, TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA, TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA38, TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256, TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384, and TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256 were added in Firefox 97 and Firefox 91.6)
CCK2 Equivalent: N/A
Preferences Affected: N/A

Windows (GPO)

Software\Policies\Mozilla\Firefox\DisabledCiphers\CIPHER_NAME = 0x1 | 0x0

Windows (Intune)

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~DisabledCiphers/DisabledCiphers_CIPHER_NAME

Value (string):

<enabled/> or <disabled/>

macOS

<dict>
  <key>DisabledCiphers</key>
    <dict>
      <key>CIPHER_NAME</key>
      <true/> | <false/>
    </dict>
</dict>

policies.json

{
  "policies": {
    "DisabledCiphers": {
      "CIPHER_NAME": true | false,
    }
  }
}

DisableDefaultBrowserAgent

Prevent the default browser agent from taking any actions. Only applicable to Windows; other platforms don’t have the agent.

The browser agent is a Windows-only scheduled task which runs in the background to collect and submit data about the browser that the user has set as their OS default. More information is available here.

Compatibility: Firefox 75, Firefox ESR 68.7 (Windows only)
CCK2 Equivalent: N/A
Preferences Affected: N/A

Windows (GPO)

Software\Policies\Mozilla\Firefox\DisableDefaultBrowserAgent = 0x1 | 0x0

Windows (Intune)

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DisableDefaultBrowserAgent

Value (string):

<enabled/> or <disabled/>

policies.json

{
  "policies": {
    "DisableDefaultBrowserAgent": true | false
  }
}

DisableDeveloperTools

Remove access to all developer tools.

Compatibility: Firefox 60, Firefox ESR 60
CCK2 Equivalent: removeDeveloperTools
Preferences Affected: devtools.policy.disabled

Windows (GPO)

Software\Policies\Mozilla\Firefox\DisableDeveloperTools = 0x1 | 0x0`

Windows (Intune)

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DisableDeveloperTools

Value (string):

<enabled/> or <disabled/>

macOS

<dict>
  <key>DisableDeveloperTools</key>
  <true/> | <false/>
</dict>

policies.json

{
  "policies": {
    "DisableDeveloperTools": true | false
  }
}

DisableFeedbackCommands

Disable the menus for reporting sites (Submit Feedback, Report Deceptive Site).

Compatibility: Firefox 60, Firefox ESR 60
CCK2 Equivalent: N/A
Preferences Affected: N/A

Windows (GPO)

Software\Policies\Mozilla\Firefox\DisableFeedbackCommands = 0x1 | 0x0

Windows (Intune)

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DisableFeedbackCommands

Value (string):

<enabled/> or <disabled/>

macOS

<dict>
  <key>DisableFeedbackCommands</key>
  <true/> | <false/>
</dict>

policies.json

{
  "policies": {
    "DisableFeedbackCommands": true | false
  }
}

DisableFirefoxAccounts

Disable Firefox Accounts integration (Sync).

Compatibility: Firefox 60, Firefox ESR 60
CCK2 Equivalent: disableSync
Preferences Affected: identity.fxaccounts.enabled

Windows (GPO)

Software\Policies\Mozilla\Firefox\DisableFirefoxAccounts = 0x1 | 0x0

Windows (Intune)

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DisableFirefoxAccounts

Value (string):

<enabled/> or <disabled/>

macOS

<dict>
  <key>DisableFirefoxAccounts</key>
  <true/> | <false/>
</dict>

policies.json

{
  "policies": {
    "DisableFirefoxAccounts": true | false
  }
}

DisableFirefoxScreenshots

Remove access to Firefox Screenshots.

Compatibility: Firefox 60, Firefox ESR 60
CCK2 Equivalent: N/A
Preferences Affected: extensions.screenshots.disabled

Windows (GPO)

Software\Policies\Mozilla\Firefox\DisableFirefoxScreenshots = 0x1 | 0x0

Windows (Intune)

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DisableFirefoxScreenshots

Value (string):

<enabled/> or <disabled/>

macOS

<dict>
  <key>DisableFirefoxScreenshots</key>
  <true/> | <false/>
</dict>

policies.json

{
  "policies": {
    "DisableFirefoxScreenshots": true | false
  }
}

DisableFirefoxStudies

Disable Firefox studies (Shield).

Compatibility: Firefox 60, Firefox ESR 60
CCK2 Equivalent: N/A
Preferences Affected: N/A

Windows (GPO)

Software\Policies\Mozilla\Firefox\DisableFirefoxStudies = 0x1 | 0x0

Windows (Intune)

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DisableFirefoxStudies

Value (string):

<enabled/> or <disabled/>

macOS

<dict>
  <key>DisableFirefoxStudies</key>
  <true/> | <false/>
</dict>

policies.json

{
  "policies": {
    "DisableFirefoxStudies": true | false
  }
}

DisableForgetButton

Disable the “Forget” button.

Compatibility: Firefox 60, Firefox ESR 60
CCK2 Equivalent: disableForget
Preferences Affected: N/A

Windows (GPO)

Software\Policies\Mozilla\Firefox\DisableForgetButton = 0x1 | 0x0

Windows (Intune)

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DisableForgetButton

Value (string):

<enabled/> or <disabled/>

macOS

<dict>
  <key>DisableForgetButton</key>
  <true/> | <false/>
</dict>

policies.json

{
  "policies": {
    "DisableForgetButton": true | false
  }
}

DisableFormHistory

Turn off saving information on web forms and the search bar.

Compatibility: Firefox 60, Firefox ESR 60
CCK2 Equivalent: disableFormFill
Preferences Affected: browser.formfill.enable

Windows (GPO)

Software\Policies\Mozilla\Firefox\DisableFormHistory = 0x1 | 0x0

Windows (Intune)

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DisableFormHistory

Value (string):

<enabled/> or <disabled/>

macOS

<dict>
  <key>DisableFormHistory</key>
  <true/> | <false/>
</dict>

policies.json

{
  "policies": {
    "DisableFormHistory": true | false
  }
}

DisableMasterPasswordCreation

Remove the master password functionality.

If this value is true, it works the same as setting PrimaryPassword to false and removes the primary password functionality.

If both DisableMasterPasswordCreation and PrimaryPassword are used, DisableMasterPasswordCreation takes precedent.

Compatibility: Firefox 60, Firefox ESR 60
CCK2 Equivalent: noMasterPassword
Preferences Affected: N/A

Windows (GPO)

Software\Policies\Mozilla\Firefox\DisableMasterPasswordCreation = 0x1 | 0x0

Windows (Intune)

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DisableMasterPasswordCreation

Value (string):

<enabled/> or <disabled/>

macOS

<dict>
  <key>DisableMasterPasswordCreation</key>
  <true/> | <false/>
</dict>

policies.json

{
  "policies": {
    "DisableMasterPasswordCreation": true | false
  }
}

DisablePasswordReveal

Do not allow passwords to be shown in saved logins

Compatibility: Firefox 71, Firefox ESR 68.3
CCK2 Equivalent: N/A Preferences Affected: N/A

Windows (GPO)

Software\Policies\Mozilla\Firefox\DisablePasswordReveal = 0x1 | 0x0

Windows (Intune)

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DisablePasswordReveal

Value (string):

<enabled/> or <disabled/>

macOS

<dict>
  <key>DisablePasswordReveal</key>
  <true/> | <false/>
</dict>

policies.json

{
  "policies": {
    "DisablePasswordReveal": true | false
  }
}

DisablePocket

Remove Pocket in the Firefox UI. It does not remove it from the new tab page.

Compatibility: Firefox 60, Firefox ESR 60
CCK2 Equivalent: disablePocket
Preferences Affected: extensions.pocket.enabled

Windows (GPO)

Software\Policies\Mozilla\Firefox\DisablePocket = 0x1 | 0x0

Windows (Intune)

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DisablePocket

Value (string):

<enabled/> or <disabled/>

macOS

<dict>
  <key>DisablePocket</key>
  <true/> | <false/>
</dict>

policies.json

{
  "policies": {
    "DisablePocket": true | false
  }
}

DisablePrivateBrowsing

Remove access to private browsing.

Compatibility: Firefox 60, Firefox ESR 60
CCK2 Equivalent: disablePrivateBrowsing
Preferences Affected: N/A

Windows (GPO)

Software\Policies\Mozilla\Firefox\DisablePrivateBrowsing = 0x1 | 0x0

Windows (Intune)

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DisablePrivateBrowsing

Value (string):

<enabled/> or <disabled/>

macOS

<dict>
  <key>DisablePrivateBrowsing</key>
  <true/> | <false/>
</dict>

policies.json

{
  "policies": {
    "DisablePrivateBrowsing": true | false
  }
}

DisableProfileImport

Disables the “Import data from another browser” option in the bookmarks window.

Compatibility: Firefox 60, Firefox ESR 60
CCK2 Equivalent: N/A
Preferences Affected: N/A

Windows (GPO)

Software\Policies\Mozilla\Firefox\DisableProfileImport = 0x1 | 0x0

Windows (Intune)

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DisableProfileImport

Value (string):

<enabled/> or <disabled/>

macOS

<dict>
  <key>DisableProfileImport</key>
  <true/> | <false/>
</dict>

policies.json

{
  "policies": {
    "DisableProfileImport": true | false
  }
}

DisableProfileRefresh

Disable the Refresh Firefox button on about:support and support.mozilla.org, as well as the prompt that displays offering to refresh Firefox when you haven’t used it in a while.

Compatibility: Firefox 60, Firefox ESR 60
CCK2 Equivalent: disableResetFirefox
Preferences Affected: browser.disableResetPrompt

Windows (GPO)

Software\Policies\Mozilla\Firefox\DisableProfileRefresh = 0x1 | 0x0

Windows (Intune)

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DisableProfileRefresh

Value (string):

<enabled/> or <disabled/>

macOS

<dict>
  <key>DisableProfileRefresh</key>
  <true/> | <false/>
</dict>

policies.json

{
  "policies": {
    "DisableProfileRefresh": true | false
  }
}

DisableSafeMode

Disable safe mode within the browser.

On Windows, this disables safe mode via the command line as well.

Compatibility: Firefox 60, Firefox ESR 60 (Windows, macOS)
CCK2 Equivalent: disableSafeMode
Preferences Affected: N/A

Windows (GPO)

Software\Policies\Mozilla\Firefox\DisableSafeMode = 0x1 | 0x0

Windows (Intune)

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DisableSafeMode

Value (string):

<enabled/> or <disabled/>

macOS

<dict>
  <key>DisableSafeMode</key>
  <true/> | <false/>
</dict>

policies.json

{
  "policies": {
    "DisableSafeMode": true | false
  }
}

DisableSecurityBypass

Prevent the user from bypassing security in certain cases.

InvalidCertificate prevents adding an exception when an invalid certificate is shown.

SafeBrowsing prevents selecting “ignore the risk” and visiting a harmful site anyway.

These policies only affect what happens when an error is shown, they do not affect any settings in preferences.

Compatibility: Firefox 60, Firefox ESR 60
CCK2 Equivalent: N/A
Preferences Affected: security.certerror.hideAddException, browser.safebrowsing.allowOverride

Windows (GPO)

Software\Policies\Mozilla\Firefox\DisableSecurityBypass\InvalidCertificate = 0x1 | 0x0
Software\Policies\Mozilla\Firefox\DisableSecurityBypass\SafeBrowsing = 0x1 | 0x0

Windows (Intune)

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/P_DisableSecurityBypass_InvalidCertificate

Value (string):

<enabled/> or <disabled/>

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/P_DisableSecurityBypass_SafeBrowsing

Value (string):

<enabled/> or <disabled/>

macOS

<dict>
  <key>DisableSecurityBypass</key>
  <dict>
    <key>InvalidCertificate</key>
    <true/> | <false/>
    <key>SafeBrowsing</key>
    <true/> | <false/>
  </dict>
</dict>

policies.json

{
  "policies": {
    "DisableSecurityBypass": {
      "InvalidCertificate": true | false,
      "SafeBrowsing": true | false
    }
  }
}

DisableSetDesktopBackground

Remove the “Set As Desktop Background…” menuitem when right clicking on an image.

Compatibility: Firefox 60, Firefox ESR 60
CCK2 Equivalent: removeSetDesktopBackground
Preferences Affected: N/A

Windows (GPO)

Software\Policies\Mozilla\Firefox\DisableSetDesktopBackground = 0x1 | 0x0

Windows (Intune)

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DisableSetDesktopBackground

Value (string):

<enabled/> or <disabled/>

macOS

<dict>
  <key>DisableSetDesktopBackground</key>
  <true/> | <false/>
</dict>

policies.json

{
  "policies": {
    "DisableSetDesktopBackground": true | false
  }
}

DisableSystemAddonUpdate

Prevent system add-ons from being installed or updated.

Compatibility: Firefox 60, Firefox ESR 60
CCK2 Equivalent: N/A
Preferences Affected: N/A

Windows (GPO)

Software\Policies\Mozilla\Firefox\DisableSystemAddonUpdate = 0x1 | 0x0

Windows (Intune)

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DisableSystemAddonUpdate

Value (string):

<enabled/> or <disabled/>

macOS

<dict>
  <key>DisableSystemAddonUpdate</key>
  <true/> | <false/>
</dict>

policies.json

{
  "policies": {
    "DisableSystemAddonUpdate": true | false
  }
}

DisableTelemetry

Prevent the upload of telemetry data.

As of Firefox 83 and Firefox ESR 78.5, local storage of telemetry data is disabled as well.

Mozilla recommends that you do not disable telemetry. Information collected through telemetry helps us build a better product for businesses like yours.

Compatibility: Firefox 60, Firefox ESR 60
CCK2 Equivalent: disableTelemetry
Preferences Affected: datareporting.healthreport.uploadEnabled, datareporting.policy.dataSubmissionEnabled, toolkit.telemetry.archive.enabled

Windows (GPO)

Software\Policies\Mozilla\Firefox\DisableTelemetry = 0x1 | 0x0

Windows (Intune)

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DisableTelemetry

Value (string):

<enabled/> or <disabled/>

macOS

<dict>
  <key>DisableTelemetry</key>
  <true/> | <false/>
</dict>

policies.json

{
  "policies": {
    "DisableTelemetry": true | false
  }
}

DisableThirdPartyModuleBlocking

Do not allow blocking third-party modules from the about:third-party page.

This policy only works on Windows through GPO (not policies.json).

Compatibility: Firefox 110 (Windows only, GPO only)
CCK2 Equivalent: N/A
Preferences Affected: N/A

Windows (GPO)

Software\Policies\Mozilla\Firefox\DisableThirdPartyModuleBlocking = = 0x1 | 0x0

Windows (Intune)

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DisableThirdPartyModuleBlocking

Value (string):

<enabled/> or <disabled/>

DisplayBookmarksToolbar

Set the initial state of the bookmarks toolbar. A user can still change how it is displayed.

always means the bookmarks toolbar is always shown.

never means the bookmarks toolbar is not shown.

newtab means the bookmarks toolbar is only shown on the new tab page.

Compatibility: Firefox 109, Firefox ESR 102.7
CCK2 Equivalent: N/A
Preferences Affected: N/A

Windows (GPO)

Software\Policies\Mozilla\Firefox\DisplayBookmarksToolbar = "always", "never", "newtab"

Windows (Intune)

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DisplayBookmarksToolbar_Enum

Value (string):

<enabled/>
<data id="DisplayBookmarksToolbar" value="always | never | newtab"/>

macOS

<dict>
  <key>DisplayBookmarksToolbar</key>
  <string>always | never | newtab</string>
</dict>

policies.json

{
  "policies": {
    "DisplayBookmarksToolbar": "always" | "never" | "newtab"
  }
}

DisplayMenuBar

Set the state of the menubar.

always means the menubar is shown and cannot be hidden.

never means the menubar is hidden and cannot be shown.

default-on means the menubar is on by default but can be hidden.

default-off means the menubar is off by default but can be shown.

Compatibility: Firefox 73, Firefox ESR 68.5 (Windows, some Linux)
CCK2 Equivalent: displayMenuBar
Preferences Affected: N/A

Windows (GPO)

Software\Policies\Mozilla\Firefox\DisplayMenuBar = "always", "never", "default-on", "default-off"

Windows (Intune)

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DisplayMenuBar_Enum

Value (string):

<enabled/>
<data id="DisplayMenuBar" value="always | never | default-on | default-off"/>

macOS

<dict>
  <key>DisplayMenuBar</key>
  <string>always | never | default-on | default-off</string>
</dict>

policies.json

{
  "policies": {
    "DisplayMenuBar": "always", "never", "default-on", "default-off"
  }
}

DNSOverHTTPS

Configure DNS over HTTPS.

Enabled determines whether DNS over HTTPS is enabled

ProviderURL is a URL to another provider.

Locked prevents the user from changing DNS over HTTPS preferences.

ExcludedDomains excludes domains from DNS over HTTPS.

Compatibility: Firefox 63, Firefox ESR 68 (ExcludedDomains added in 75/68.7)
CCK2 Equivalent: N/A
Preferences Affected: network.trr.mode, network.trr.uri

Windows (GPO)

Software\Policies\Mozilla\Firefox\DNSOverHTTPS\Enabled = 0x1 | 0x0
Software\Policies\Mozilla\Firefox\DNSOverHTTPS\ProviderURL = "URL_TO_ALTERNATE_PROVIDER"
Software\Policies\Mozilla\Firefox\DNSOverHTTPS\Locked = 0x1 | 0x0
Software\Policies\Mozilla\Firefox\DNSOverHTTPS\ExcludedDomains\1 = "example.com"

Windows (Intune)

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~DNSOverHTTPS/DNSOverHTTPS_Enabled

Value (string):

<enabled/> or <disabled/>

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~DNSOverHTTPS/DNSOverHTTPS_ProviderURL

Value (string):

<enabled/>
<data id="String" value="URL_TO_ALTERNATE_PROVIDER"/>

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~DNSOverHTTPS/DNSOverHTTPS_Locked

Value (string):

<enabled/> or <disabled/>

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~DNSOverHTTPS/DNSOverHTTPS_ExcludedDomains

Value (string):

<enabled/>
<data id="List" value="1&#xF000;example.com"/>

macOS

<dict>
  <key>DNSOverHTTPS</key>
  <dict>
    <key>Enabled</key>
    <true/> | <false/>
    <key>ProviderURL</key>
    <string>URL_TO_ALTERNATE_PROVIDER</string>
    <key>Locked</key>
    <true/> | <false/>
    <key>ExcludedDomains</key>
    <array>
      <string>example.com</string>
    </array>
  </dict>
</dict>

policies.json

{
  "policies": {
    "DNSOverHTTPS": {
      "Enabled":  true | false,
      "ProviderURL": "URL_TO_ALTERNATE_PROVIDER",
      "Locked": true | false,
      "ExcludedDomains": ["example.com"]
    }
  }
}

DontCheckDefaultBrowser

Don’t check if Firefox is the default browser at startup.

Compatibility: Firefox 60, Firefox ESR 60
CCK2 Equivalent: dontCheckDefaultBrowser
Preferences Affected: browser.shell.checkDefaultBrowser

Windows (GPO)

Software\Policies\Mozilla\Firefox\DontCheckDefaultBrowser = 0x1 | 0x0

Windows (Intune)

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DontCheckDefaultBrowser

Value (string):

<enabled/> or <disabled/>

macOS

<dict>
  <key>DontCheckDefaultBrowser</key>
  <true/> | <false/>
</dict>

policies.json

{
  "policies": {
    "DontCheckDefaultBrowser": true | false
  }
}

DownloadDirectory

Set and lock the download directory.

You can use ${home} for the native home directory.

Compatibility: Firefox 68, Firefox ESR 68
CCK2 Equivalent: N/A
Preferences Affected: browser.download.dir, browser.download.folderList, browser.download.useDownloadDir

Windows (GPO)

Software\Policies\Mozilla\Firefox\DownloadDirectory = "${home}\Downloads"

Windows (Intune)

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DownloadDirectory

Value (string):

<enabled/>
<data id="Preferences_String" value="${home}\Downloads"/>

macOS

<dict>
  <key>DownloadDirectory</key>
  <string>${home}/Downloads</string>
</dict>

policies.json (macOS and Linux)

{
  "policies": {
    "DownloadDirectory": "${home}/Downloads"
}

policies.json (Windows)

{
  "policies": {
    "DownloadDirectory": "${home}\\Downloads"
}

EnableTrackingProtection

Configure tracking protection.

If this policy is not configured, tracking protection is not enabled by default in the browser, but it is enabled by default in private browsing and the user can change it.

If Value is set to false, tracking protection is disabled and locked in both the regular browser and private browsing.

If Value is set to true, tracking protection is enabled by default in both the regular browser and private browsing and the Locked value determines whether or not a user can change it.

If Cryptomining is set to true, cryptomining scripts on websites are blocked.

If Fingerprinting is set to true, fingerprinting scripts on websites are blocked.

If EmailTracking is set to true, hidden email tracking pixels and scripts on websites are blocked. (Firefox 112)

Exceptions are origins for which tracking protection is not enabled.

Compatibility: Firefox 60, Firefox ESR 60 (Cryptomining and Fingerprinting added in 70/68.2, Exceptions added in 73/68.5)
CCK2 Equivalent: N/A
Preferences Affected: privacy.trackingprotection.enabled, privacy.trackingprotection.pbmode.enabled, privacy.trackingprotection.cryptomining.enabled, privacy.trackingprotection.fingerprinting.enabled

Windows (GPO)

Software\Policies\Mozilla\Firefox\EnableTrackingProtection\Value = 0x1 | 0x0
Software\Policies\Mozilla\Firefox\EnableTrackingProtection\Locked = 0x1 | 0x0
Software\Policies\Mozilla\Firefox\EnableTrackingProtection\Cryptomining = 0x1 | 0x0
Software\Policies\Mozilla\Firefox\EnableTrackingProtection\Fingerprinting = 0x1 | 0x0
Software\Policies\Mozilla\Firefox\EnableTrackingProtection\Exceptions\1 = "https://example.com"

Windows (Intune)

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~TrackingProtection/A_TrackingProtection_Value

Value (string):

<enabled/> or <disabled/>

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~TrackingProtection/B_TrackingProtection_Cryptomining

Value (string):

<enabled/> or <disabled/>

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~TrackingProtection/C_TrackingProtection_Fingerprinting

Value (string):

<enabled/> or <disabled/>

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~TrackingProtection/D_TrackingProtection_Exceptions

Value (string):

<enabled/>
<data id="TrackingProtection_Exceptions" value="1&#xF000;https://example.com"/>

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~TrackingProtection/E_TrackingProtection_Locked

Value (string):

<enabled/> or <disabled/>

macOS

<dict>
  <key>EnableTrackingProtection</key>
  <dict>
    <key>Value</key>
    <true/> | <false/>
    <key>Locked</key>
    <true/> | <false/>
    <key>Cryptomining</key>
    <true/> | <false/>
    <key>Fingerprinting</key>
    <true/> | <false/>
    <key>Exceptions</key>
    <array>
      <string>https://example.com</string>
    </array>
  </dict>
</dict>

policies.json

{
  "policies": {
    "EnableTrackingProtection": {
      "Value": true | false,
      "Locked": true | false,
      "Cryptomining": true | false,
      "Fingerprinting": true | false,
      "Exceptions": ["https://example.com"]
    }
  }
}

EncryptedMediaExtensions

Enable or disable Encrypted Media Extensions and optionally lock it.

If Enabled is set to false, encrypted media extensions (like Widevine) are not downloaded by Firefox unless the user consents to installing them.

If Locked is set to true and Enabled is set to false, Firefox will not download encrypted media extensions (like Widevine) or ask the user to install them.

Compatibility: Firefox 77, Firefox ESR 68.9
CCK2 Equivalent: N/A
Preferences Affected: media.eme.enabled

Windows (GPO)

Software\Policies\Mozilla\Firefox\EncryptedMediaExtensions\Enabled = 0x1 | 0x0
Software\Policies\Mozilla\Firefox\EncryptedMediaExtensions\Locked = 0x1 | 0x0

Windows (Intune)

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~EncryptedMediaExtensions/EncryptedMediaExtensions_Enabled
./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~EncryptedMediaExtensions/EncryptedMediaExtensions_Locked

Value (string):

<enabled/>or <disabled/>

macOS

<dict>
  <key>EncryptedMediaExtensions</key>
  <dict>
    <key>Enabled</key>
    <true/> | <false/>
    <key>Locked</key>
    <true/> | <false/>
  </dict>
</dict>

policies.json

{
  "policies": {
    "EncryptedMediaExtensions": {
      "Enabled": true | false,
      "Locked": true | false
    }
  }
}

EnterprisePoliciesEnabled

Enable policy support on macOS.

Compatibility: Firefox 63, Firefox ESR 60.3 (macOS only)
CCK2 Equivalent: N/A
Preferences Affected: N/A

macOS

<dict>
  <key>EnterprisePoliciesEnabled</key>
  <true/>
</dict>

ExemptDomainFileTypePairsFromFileTypeDownloadWarnings

Disable warnings based on file extension for specific file types on domains.

This policy is based on the Chrome policy of the same name.

Important: The documentation for the policy for both Edge and Chrome is incorrect. The domains value must be a domain, not a URL pattern. Also, we do not support using * to mean all domains.

Compatibility: Firefox 102
CCK2 Equivalent: N/A
Preferences Affected: N/A

Windows (GPO)

Software\Policies\Mozilla\Firefox\ExemptDomainFileTypePairsFromFileTypeDownloadWarnings (REG_MULTI_SZ) =

[
  {
     "file_extension": "jnlp",
     "domains": ["example.com"]
  }
]

Windows (Intune)

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/ExemptDomainFileTypePairsFromFileTypeDownloadWarnings

Value (string):

<enabled/>
<data id="JSON" value='
[
  {
     "file_extension": "jnlp",
     "domains": ["example.com"]
  }
]
'/>

macOS

<dict>
  <key>ExemptDomainFileTypePairsFromFileTypeDownloadWarnings</key>
  <array>
    <dict>
      <key>file_extension</key>
      <string>jnlp</string>
      <key>domains</key>
      <array>
        <string>example.com</string>
      </array>
    </dict>
  </array>
</dict>

policies.json

{
  "policies": {
    "ExemptDomainFileTypePairsFromFileTypeDownloadWarnings": [{
      "file_extension": "jnlp",
      "domains": ["example.com"]
    }]
  }
}

Extensions

Control the installation, uninstallation and locking of extensions.

We strongly recommend that you use the ExtensionSettings policy. It has the same functionality and adds more. It does not support native paths, though, so you’ll have to use file:/// URLs.

This method will be deprecated in the near future.

Install is a list of URLs or native paths for extensions to be installed.

Uninstall is a list of extension IDs that should be uninstalled if found.

Locked is a list of extension IDs that the user cannot disable or uninstall.

Compatibility: Firefox 60, Firefox ESR 60
CCK2 Equivalent: addons
Preferences Affected: N/A

Windows (GPO)

Software\Policies\Mozilla\Firefox\Extensions\Install\1 = "https://addons.mozilla.org/firefox/downloads/somefile.xpi"
Software\Policies\Mozilla\Firefox\Extensions\Install\2 = "//path/to/xpi"
Software\Policies\Mozilla\Firefox\Extensions\Uninstall\1 = "bad_addon_id@mozilla.org"
Software\Policies\Mozilla\Firefox\Extensions\Locked\1 = "addon_id@mozilla.org"

Windows (Intune)

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Extensions/Extensions_Install

Value (string):

<enabled/>
<data id="Extensions" value="1&#xF000;https://addons.mozilla.org/firefox/downloads/somefile.xpi&#xF000;2&#xF000;//path/to/xpi"/>

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Extensions/Extensions_Uninstall

Value (string):

<enabled/>
<data id="Extensions" value="1&#xF000;bad_addon_id@mozilla.org"/>

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Extensions/Extensions_Locked

Value (string):

<enabled/>
<data id="Extensions" value="1&#xF000;addon_id@mozilla.org"/>

macOS

<dict>
  <key>Extensions</key>
  <dict>
    <key>Install</key>
    <array>
      <string>https://addons.mozilla.org/firefox/downloads/somefile.xpi</string>
      <string>//path/to/xpi</string>
    </array>
    <key>Uninstall</key>
    <array>
      <string>bad_addon_id@mozilla.org</string>
    </array>
    <key>Locked</key>
    <array>
      <string>addon_id@mozilla.org</string>
    </array>
  </dict>
</dict>

policies.json

{
  "policies": {
    "Extensions": {
      "Install": ["https://addons.mozilla.org/firefox/downloads/somefile.xpi", "//path/to/xpi"],
      "Uninstall": ["bad_addon_id@mozilla.org"],
      "Locked":  ["addon_id@mozilla.org"]
    }
  }
}

ExtensionSettings

Manage all aspects of extensions. This policy is based heavily on the Chrome policy of the same name.

This policy maps an extension ID to its configuration. With an extension ID, the configuration will be applied to the specified extension only. A default configuration can be set for the special ID “*”, which will apply to all extensions that don’t have a custom configuration set in this policy.

To obtain an extension ID, install the extension and go to about:support. You will see the ID in the Extensions section. I’ve also created an extension that makes it easy to find the ID of extensions on AMO. You can download it here.

The configuration for each extension is another dictionary that can contain the fields documented below.

Name Description
installation_mode Maps to a string indicating the installation mode for the extension. The valid strings are allowed,blocked,force_installed, and normal_installed.
        allowed Allows the extension to be installed by the user. This is the default behavior. There is no need for an install_url; it will automatically be allowed based on the ID.
        blocked Blocks installation of the extension and removes it from the device if already installed.
        force_installed The extension is automatically installed and can’t be removed by the user. This option is not valid for the default configuration and requires an install_url.
        normal_installed The extension is automatically installed but can be disabled by the user. This option is not valid for the default configuration and requires an install_url.
install_url Maps to a URL indicating where Firefox can download a force_installed or normal_installed extension. If installing from the local file system, use a file:/// URL. If installing from the addons.mozilla.org, use the following URL (substituting SHORT_NAME from the URL on AMO), https://addons.mozilla.org/firefox/downloads/latest/SHORT_NAME/latest.xpi. Languages packs are available from https://releases.mozilla.org/pub/firefox/releases/VERSION/PLATFORM/xpi/LANGUAGE.xpi. If you need to update the extension, you can change the name of the extension and it will be automatically updated. Extensions installed from file URLs will additional be updated when their internal version changes.
install_sources A list of sources from which installing extensions is allowed using URL match patterns. This is unnecessary if you are only allowing the installation of certain extensions by ID. Each item in this list is an extension-style match pattern. Users will be able to easily install items from any URL that matches an item in this list. Both the location of the *.xpi file and the page where the download is started from (i.e. the referrer) must be allowed by these patterns. This setting can be used only for the default configuration.
allowed_types This setting whitelists the allowed types of extension/apps that can be installed in Firefox. The value is a list of strings, each of which should be one of the following: “extension”, “theme”, “dictionary”, “locale” This setting can be used only for the default configuration.
blocked_install_message This maps to a string specifying the error message to display to users if they’re blocked from installing an extension. This setting allows you to append text to the generic error message displayed when the extension is blocked. This could be be used to direct users to your help desk, explain why a particular extension is blocked, or something else. This setting can be used only for the default configuration.
restricted_domains An array of domains on which content scripts can’t be run. This setting can be used only for the default configuration.
updates_disabled (Firefox 89, Firefox ESR 78.11) Boolean that indicates whether or not to disable automatic updates for an individual extension.
default_area (Firefox 113) String that indicates where to place the extension icon by default. Possible values are navbar and menupanel.

Compatibility: Firefox 69, Firefox ESR 68.1 (As of Firefox 85, Firefox ESR 78.7, installing a theme makes it the default.)
CCK2 Equivalent: N/A
Preferences Affected: N/A

Windows (GPO)

Software\Policies\Mozilla\Firefox\ExtensionSettings (REG_MULTI_SZ) =

{
  "*": {
    "blocked_install_message": "Custom error message.",
    "install_sources": ["https://yourwebsite.com/*"],
    "installation_mode": "blocked",
    "allowed_types": ["extension"]
  },
  "uBlock0@raymondhill.net": {
    "installation_mode": "force_installed",
    "install_url": "https://addons.mozilla.org/firefox/downloads/latest/ublock-origin/latest.xpi"
  },
  "https-everywhere@eff.org": {
    "installation_mode": "allowed"
  }
}

Windows (Intune)

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Extensions/ExtensionSettings

Value (string):

<enabled/>
<data id="ExtensionSettings" value='
{
  "*": {
    "blocked_install_message": "Custom error message.",
    "install_sources": ["https://yourwebsite.com/*"],
    "installation_mode": "blocked",
    "allowed_types": ["extension"]
  },
  "uBlock0@raymondhill.net": {
    "installation_mode": "force_installed",
    "install_url": "https://addons.mozilla.org/firefox/downloads/latest/ublock-origin/latest.xpi"
  },
    "https-everywhere@eff.org": {
    "installation_mode": "allowed"
  }
}'/>

macOS

<dict>
  <key>ExtensionSettings</key>
  <dict>
    <key>*</key>
    <dict>
      <key>blocked_install_message</key>
      <string>Custom error message.</string>
      <key>install_sources</key>
      <array>
        <string>"https://yourwebsite.com/*"</string>
      </array>
      <key>installation_mode</key>
      <string>blocked</string>
      <key>allowed_types</key>
      <array>
        <string>extension</string>
      </array>
    </dict>
    <key>uBlock0@raymondhill.net</key>
    <dict>
      <key>installation_mode</key>
       <string>force_installed</string>
      <key>install_url</key>
      <string>https://addons.mozilla.org/firefox/downloads/latest/ublock-origin/latest.xpi</string>
    </dict>
    <key>https-everywhere@eff.org</key>
    <dict>
      <key>installation_mode</key>
       <string>allowed</string>
    </dict>
  </dict>
</dict>

policies.json

{
  "policies": {
    "ExtensionSettings": {
      "*": {
        "blocked_install_message": "Custom error message.",
        "install_sources": ["https://yourwebsite.com/*"],
        "installation_mode": "blocked",
        "allowed_types": ["extension"]
      },
      "uBlock0@raymondhill.net": {
        "installation_mode": "force_installed",
        "install_url": "https://addons.mozilla.org/firefox/downloads/latest/ublock-origin/latest.xpi"
      },
      "https-everywhere@eff.org": {
        "installation_mode": "allowed"
      }
    }
  }
}

ExtensionUpdate

Control extension updates.

Compatibility: Firefox 67, Firefox ESR 60.7
CCK2 Equivalent: N/A
Preferences Affected: extensions.update.enabled

Windows (GPO)

Software\Policies\Mozilla\Firefox\ExtensionUpdate = 0x1 | 0x0

Windows (Intune)

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Extensions/ExtensionUpdate

Value (string):

<enabled/> or <disabled/>

macOS

<dict>
  <key>ExtensionUpdate</key>
  <true/> | <false/>
</dict>

policies.json

{
  "policies": {
    "ExtensionUpdate": true | false
  }
}

FirefoxHome

Customize the Firefox Home page.

Compatibility: Firefox 68, Firefox ESR 68 (SponsoredTopSites and SponsoredPocket were added in Firefox 95, Firefox ESR 91.4, Snippets was deprecated in Firefox 122) CCK2 Equivalent: N/A
Preferences Affected: browser.newtabpage.activity-stream.showSearch, browser.newtabpage.activity-stream.feeds.topsites, browser.newtabpage.activity-stream.feeds.section.highlights, browser.newtabpage.activity-stream.feeds.section.topstories, browser.newtabpage.activity-stream.feeds.snippets, browser.newtabpage.activity-stream.showSponsoredTopSites, browser.newtabpage.activity-stream.showSponsored

Windows (GPO)

Software\Policies\Mozilla\Firefox\FirefoxHome\Search = 0x1 | 0x0
Software\Policies\Mozilla\Firefox\FirefoxHome\TopSites = 0x1 | 0x0
Software\Policies\Mozilla\Firefox\FirefoxHome\SponsoredTopSites = 0x1 | 0x0
Software\Policies\Mozilla\Firefox\FirefoxHome\Highlights = 0x1 | 0x0
Software\Policies\Mozilla\Firefox\FirefoxHome\Pocket = 0x1 | 0x0
Software\Policies\Mozilla\Firefox\FirefoxHome\SponsoredPocket = 0x1 | 0x0
Software\Policies\Mozilla\Firefox\FirefoxHome\Snippets = 0x1 | 0x0
Software\Policies\Mozilla\Firefox\FirefoxHome\Locked = 0x1 | 0x0

Windows (Intune)

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/CustomizeFirefoxHome

Value (string):

<enabled/>
<data id="FirefoxHome_Search"  value="true | false"/>
<data id="FirefoxHome_TopSites"  value="true | false"/>
<data id="FirefoxHome_SponsoredTopSites"  value="true | false"/>
<data id="FirefoxHome_Highlights"  value="true | false"/>
<data id="FirefoxHome_Pocket"  value="true | false"/>
<data id="FirefoxHome_SponsoredPocket"  value="true | false"/>
<data id="FirefoxHome_Snippets"  value="true | false"/>
<data id="FirefoxHome_Locked"  value="true | false"/>

macOS

<dict>
  <key>FirefoxHome</key>
  <dict>
    <key>Search</key>
    <true/> | <false/>
    <key>TopSites</key>
    <true/> | <false/>
    <key>SponsoredTopSites</key>
    <true/> | <false/>
    <key>Highlights</key>
    <true/> | <false/>
    <key>Pocket</key>
    <true/> | <false/>
    <key>SponsoredPocket</key>
    <true/> | <false/>
    <key>Snippets</key>
    <true/> | <false/>
    <key>Locked</key>
    <true/> | <false/>
  </dict>
</dict>

policies.json

{
  "policies": {
    "FirefoxHome": {
      "Search": true | false,
      "TopSites": true | false,
      "SponsoredTopSites": true | false,
      "Highlights": true | false,
      "Pocket": true | false,
      "SponsoredPocket": true | false,
      "Snippets": true | false,
      "Locked": true | false
    }
  }
}

FirefoxSuggest

Customize Firefox Suggest (US only).

Compatibility: Firefox 118, Firefox ESR 115.3. CCK2 Equivalent: N/A
Preferences Affected: browser.urlbar.suggest.quicksuggest.nonsponsored, browser.urlbar.suggest.quicksuggest.sponsored, browser.urlbar.quicksuggest.dataCollection.enabled

Windows (GPO)

Software\Policies\Mozilla\Firefox\FirefoxSuggest\WebSuggestions = 0x1 | 0x0
Software\Policies\Mozilla\Firefox\FirefoxSuggest\SponsoredSuggestions = 0x1 | 0x0
Software\Policies\Mozilla\Firefox\FirefoxSuggest\ImproveSuggest = 0x1 | 0x0
Software\Policies\Mozilla\Firefox\FirefoxSuggest\Locked = 0x1 | 0x0

Windows (Intune)

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~FirefoxSuggest/WebSuggestions

Value (string):

<enabled/> or <disabled/>

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~FirefoxSuggest/SponsoredSuggestions

Value (string):

<enabled/> or <disabled/>

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~FirefoxSuggest/ImproveSuggest

Value (string):

<enabled/> or <disabled/>

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~FirefoxSuggest/Locked

Value (string):

<enabled/> or <disabled/>

macOS

<dict>
  <key>FirefoxSuggest</key>
  <dict>
    <key>WebSuggestions</key>
    <true/> | <false/>
    <key>SponsoredSuggestions</key>
    <true/> | <false/>
    <key>ImproveSuggest</key>
    <true/> | <false/>
    <key>Locked</key>
    <true/> | <false/>
  </dict>
</dict>

policies.json

{
  "policies": {
    "FirefoxSuggest": {
      "WebSuggestions": true | false,
      "SponsoredSuggestions": true | false,
      "ImproveSuggest": true | false,
      "Locked": true | false
    }
  }
}

GoToIntranetSiteForSingleWordEntryInAddressBar

Whether to always go through the DNS server before sending a single word search string to a search engine.

If the site exists, it will navigate to the website. If the intranet responds with a 404, the page will show a 404. If the intranet does not respond, the browser will attempt a search.

The second result in the URL bar will be a search result to allow users to conduct a web search exactly as it was entered.

If instead you would like to enable the ability to have your domain appear as a valid URL and to disallow the browser from ever searching that term using the first result that matches it, add the pref browser.fixup.domainwhitelist.YOUR_DOMAIN (where YOUR_DOMAIN is the name of the domain you’d like to add), and set the pref to true. The URL bar will then suggest YOUR_DOMAIN when the user fully types YOUR_DOMAIN. If the user attempts to load that domain and it fails to load, it will show an “Unable to connect” error page.

You can also whitelist a domain suffix that is not part of the Public Suffix List by adding the pref browser.fixup.domainsuffixwhitelist.YOUR_DOMAIN_SUFFIX with a value of true.

Additionally, if you want users to see a “Did you mean to go to ‘YOUR_DOMAIN’” prompt below the URL bar if they land on a search results page instead of an intranet domain that provides a response, set the pref browser.urlbar.dnsResolveSingleWordsAfterSearch to 1. Enabling this will cause the browser to commit a DNS check after every single word search. If the browser receives a response from the intranet, a prompt will ask the user if they’d like to instead navigate to YOUR_DOMAIN. If the user presses the yes button, browser.fixup.domainwhitelist.YOUR_DOMAIN will be set to true.

Compatibility: Firefox 104, Firefox ESR 102.2
CCK2 Equivalent: N/A
Preferences Affected: browser.fixup.dns_first_for_single_words

Windows (GPO)

Software\Policies\Mozilla\Firefox\GoToIntranetSiteForSingleWordEntryInAddressBar = 0x1 | 0x0

Windows (Intune)

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/GoToIntranetSiteForSingleWordEntryInAddressBar

Value (string):

<enabled/> or <disabled/>

macOS

<dict>
  <key>GoToIntranetSiteForSingleWordEntryInAddressBar</key>
  <true/> | <false/>
</dict>

policies.json

{
  "policies": {
    "GoToIntranetSiteForSingleWordEntryInAddressBar": true | false
  }
}

Handlers

Configure default application handlers. This policy is based on the internal format of handlers.json.

You can configure handlers based on a mime type (mimeTypes), a file’s extension (extensions), or a protocol (schemes).

Within each handler type, you specify the given mimeType/extension/scheme as a key and use the following subkeys to describe how it is handled.

Name Description
action Can be either saveToDisk, useHelperApp, useSystemDefault.
ask If true, the user is asked if what they want to do with the file. If false, the action is taken without user intervention.
handlers An array of handlers with the first one being the default. If you don’t want to have a default handler, use an empty object for the first handler. Choose between path or uriTemplate.
        name The display name of the handler (might not be used).
        path The native path to the executable to be used.
        uriTemplate A url to a web based application handler. The URL must be https and contain a %s to be used for substitution.

Compatibility: Firefox 78, Firefox ESR 78
CCK2 Equivalent: N/A
Preferences Affected: N/A

Windows (GPO)

Software\Policies\Mozilla\Firefox\Handlers (REG_MULTI_SZ) =

{
  "mimeTypes": {
    "application/msword": {
      "action": "useSystemDefault",
      "ask": true | false
    }
  },
  "schemes": {
    "mailto": {
      "action": "useHelperApp",
      "ask": true | false,
      "handlers": [{
        "name": "Gmail",
        "uriTemplate": "https://mail.google.com/mail/?extsrc=mailto&url=%s"
      }]
    }
  },
  "extensions": {
    "pdf": {
      "action": "useHelperApp",
      "ask": true | false,
      "handlers": [{
        "name": "Adobe Acrobat",
        "path": "C:\\Program Files (x86)\\Adobe\\Acrobat Reader DC\\Reader\\AcroRd32.exe"
      }]
    }
  }
}

Windows (Intune)

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/Handlers

Value (string):

<enabled/>
<data id="Handlers" value='
{
  "mimeTypes": {
    "application/msword": {
      "action": "useSystemDefault",
      "ask": true | false
    }
  },
  "schemes": {
    "mailto": {
      "action": "useHelperApp",
      "ask": true | false,
      "handlers": [{
        "name": "Gmail",
        "uriTemplate": "https://mail.google.com/mail/?extsrc=mailto&amp;url=%s"
      }]
    }
  },
  "extensions": {
    "pdf": {
      "action": "useHelperApp",
      "ask": true | false,
      "handlers": [{
        "name": "Adobe Acrobat",
        "path": "C:\\Program Files (x86)\\Adobe\\Acrobat Reader DC\\Reader\\AcroRd32.exe"
      }]
    }
  }
}
'/>

macOS

<dict>
  <key>Handlers</key>
  <dict>
    <key>mimeTypes</key>
    <dict>
      <key>application/msword</key>
      <dict>
        <key>action</key>
        <string>useSystemDefault</string>
        <key>ask</key>
        <true/> | <false/>
      </dict>
    </dict>
    <key>schemes</key>
    <dict>
      <key>mailto</key>
      <dict>
        <key>action</key>
        <string>useHelperApp</string>
        <key>ask</key>
        <true/> | <false/>
        <key>handlers</key>
        <array>
          <dict>
            <key>name</key>
            <string>Gmail</string>
            <key>uriTemplate</key>
            <string>https://mail.google.com/mail/?extsrc=mailto&url=%s</string>
          </dict>
        </array>
      </dict>
    </dict>
    <key>extensions</key>
    <dict>
      <key>pdf</key>
      <dict>
        <key>action</key>
        <string>useHelperApp</string>
        <key>ask</key>
        <true/> | <false/>
        <key>handlers</key>
        <array>
          <dict>
            <key>name</key>
            <string>Adobe Acrobat</string>
            <key>path</key>
            <string>/System/Applications/Preview.app</string>
          </dict>
        </array>
      </dict>
    </dict>
  </dict>
</dict>

policies.json

{
  "policies": {
    "Handlers": {
      "mimeTypes": {
        "application/msword": {
          "action": "useSystemDefault",
          "ask": false
        }
      },
      "schemes": {
        "mailto": {
          "action": "useHelperApp",
          "ask": true | false,
          "handlers": [{
            "name": "Gmail",
            "uriTemplate": "https://mail.google.com/mail/?extsrc=mailto&url=%s"
          }]
        }
      },
      "extensions": {
        "pdf": {
          "action": "useHelperApp",
          "ask": true | false,
          "handlers": [{
            "name": "Adobe Acrobat",
            "path": "/usr/bin/acroread"
          }]
        }
      }
    }
  }
}

HardwareAcceleration

Control hardware acceleration.

Compatibility: Firefox 60, Firefox ESR 60
CCK2 Equivalent: N/A
Preferences Affected: layers.acceleration.disabled

Windows (GPO)

Software\Policies\Mozilla\Firefox\HardwareAcceleration = 0x1 | 0x0

Windows (Intune)

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/HardwareAcceleration

Value (string):

<enabled/> or <disabled/>

macOS

<dict>
  <key>HardwareAcceleration</key>
  <true/> | <false/>
</dict>

policies.json

{
  "policies": {
    "HardwareAcceleration": true | false
  }
}

Homepage

Configure the default homepage and how Firefox starts.

URL is the default homepage.

Locked prevents the user from changing homepage preferences.

Additional allows for more than one homepage.

StartPage is how Firefox starts. The choices are no homepage, the default homepage or the previous session.

With Firefox 78, an additional option as added for Startpage, homepage-locked. If this is value is set for the Startpage, the user will always get the homepage at startup and cannot choose to restore their session.

Compatibility: Firefox 60, Firefox ESR 60 (StartPage was added in Firefox 60, Firefox ESR 60.4, homepage-locked added in Firefox 78)
CCK2 Equivalent: homePage,lockHomePage
Preferences Affected: browser.startup.homepage, browser.startup.page

Windows (GPO)

Software\Policies\Mozilla\Firefox\Homepage\URL = "https://example.com"
Software\Policies\Mozilla\Firefox\Homepage\Locked = 0x1 | 0x0
Software\Policies\Mozilla\Firefox\Homepage\Additional\1 = "https://example.org"
Software\Policies\Mozilla\Firefox\Homepage\Additional\2 = "https://example.edu"
Software\Policies\Mozilla\Firefox\Homepage\StartPage = "none" | "homepage" | "previous-session" | "homepage-locked"

Windows (Intune)

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Homepage/HomepageURL

Value (string):

<enabled/>

<data id="HomepageURL" value="https://example.com"/>
<data id="HomepageLocked" value="true | false"/>

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Homepage/HomepageAdditional

Value (string):

<enabled/>

<data id="HomepageAdditional" value="1&#xF000;http://example.org&#xF000;2&#xF000;http://example.edu"/>

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Homepage/HomepageStartPage

Value (string):

<enabled/>

<data id="StartPage" value="none | homepage | previous-session"/>

macOS

<dict>
  <key>Homepage</key>
  <dict>
    <key>URL</key>
    <string>http://example.com</string>
    <key>Locked</key>
    <true/> | <false/>
    <key>Additional</key>
    <array>
      <string>http://example.org</string>
      <string>http://example.edu</string>
    </array>
    <key>StartPage</key>
    <string>none | homepage | previous-session | homepage-locked</string>
  </dict>
</dict>

policies.json

{
  "policies": {
    "Homepage": {
      "URL": "http://example.com/",
      "Locked": true | false,
      "Additional": ["http://example.org/",
                     "http://example.edu/"],
      "StartPage": "none" | "homepage" | "previous-session" | "homepage-locked"
    }
  }
}

InstallAddonsPermission

Configure the default extension install policy as well as origins for extension installs are allowed. This policy does not override turning off all extension installs.

Allow is a list of origins where extension installs are allowed.

Default determines whether or not extension installs are allowed by default.

Compatibility: Firefox 60, Firefox ESR 60
CCK2 Equivalent: permissions.install
Preferences Affected: xpinstall.enabled

Windows (GPO)

Software\Policies\Mozilla\Firefox\InstallAddonsPermission\Allow\1 = "https://example.org"
Software\Policies\Mozilla\Firefox\InstallAddonsPermission\Allow\2 = "https://example.edu"
Software\Policies\Mozilla\Firefox\InstallAddonsPermission\Default = 0x1 | 0x0

Windows (Intune)

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Addons/InstallAddonsPermission_Allow

Value (string):

<enabled/>
<data id="Permissions" value="1&#xF000;https://example.org&#xF000;2&#xF000;https://example.edu"/>

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Addons/InstallAddonsPermission_Default

Value (string):

<enabled/>

macOS

<dict>
  <key>InstallAddonsPermission</key>
  <dict>
    <key>Allow</key>
    <array>
      <string>http://example.org</string>
      <string>http://example.edu</string>
    </array>
    <key>Default</key>
    <true/> | <false/>
  </dict>
</dict>

policies.json

{
  "policies": {
    "InstallAddonsPermission": {
      "Allow": ["http://example.org/",
                "http://example.edu/"],
      "Default": true | false
    }
  }
}

LegacyProfiles

Disable the feature enforcing a separate profile for each installation.

If this policy set to true, Firefox will not try to create different profiles for installations of Firefox in different directories. This is the equivalent of the MOZ_LEGACY_PROFILES environment variable.

If this policy set to false, Firefox will create a new profile for each unique installation of Firefox.

This policy only work on Windows via GPO (not policies.json).

Compatibility: Firefox 70, Firefox ESR 68.2 (Windows only, GPO only)
CCK2 Equivalent: N/A
Preferences Affected: N/A

Windows (GPO)

Software\Policies\Mozilla\Firefox\LegacyProfiles = = 0x1 | 0x0

Windows (Intune)

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/LegacyProfiles

Value (string):

<enabled/> or <disabled/>

LegacySameSiteCookieBehaviorEnabled

Enable default legacy SameSite cookie behavior setting.

If this policy is set to true, it reverts all cookies to legacy SameSite behavior which means that cookies that don’t explicitly specify a SameSite attribute are treated as if they were SameSite=None.

Compatibility: Firefox 96
CCK2 Equivalent: N/A
Preferences Affected: network.cookie.sameSite.laxByDefault

Windows (GPO)

Software\Policies\Mozilla\Firefox\LegacySameSiteCookieBehaviorEnabled = = 0x1 | 0x0

Windows (Intune)

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/LegacySameSiteCookieBehaviorEnabled

Value (string):

<enabled/> or <disabled/>

macOS

<dict>
  <key>LegacySameSiteCookieBehaviorEnabled</key>
  <true/> | <false/>
</dict>

policies.json

{
  "policies": {
    "LegacySameSiteCookieBehaviorEnabled": true | false
}

LegacySameSiteCookieBehaviorEnabledForDomainList

Revert to legacy SameSite behavior for cookies on specified sites.

If this policy is set to true, cookies set for domains in this list will revert to legacy SameSite behavior which means that cookies that don’t explicitly specify a SameSite attribute are treated as if they were SameSite=None.

Compatibility: Firefox 96
CCK2 Equivalent: N/A
Preferences Affected: network.cookie.sameSite.laxByDefault.disabledHosts

Windows (GPO)

Software\Policies\Mozilla\Firefox\LegacySameSiteCookieBehaviorEnabledForDomainList\1 = "example.org"
Software\Policies\Mozilla\Firefox\LegacySameSiteCookieBehaviorEnabledForDomainList\2 = "example.edu"

Windows (Intune)

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/LegacySameSiteCookieBehaviorEnabledForDomainList

Value (string):

<enabled/>
<data id="LegacySameSiteCookieBehaviorEnabledForDomainList" value="1&#xF000;example.org&#xF000;2&#xF000;example.edu"/>

macOS

<dict>
  <key>LegacySameSiteCookieBehaviorEnabledForDomainList</key>
  <array>
    <string>example.org</string>
    <string>example.edu</string>
  </array>
</dict>

policies.json

{
  "policies": {
    "LegacySameSiteCookieBehaviorEnabledForDomainList": ["example.org",
                                                         "example.edu"]
  }
}

Enable linking to local files by origin.

Compatibility: Firefox 68, Firefox ESR 68
CCK2 Equivalent: N/A
Preferences Affected: capability.policy.localfilelinks.*

Windows (GPO)

Software\Policies\Mozilla\Firefox\LocalFileLinks\1 = "https://example.org"
Software\Policies\Mozilla\Firefox\LocalFileLinks\2 = "https://example.edu"

Windows (Intune)

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/LocalFileLinks

Value (string):

<enabled/>
<data id="LocalFileLinks" value="1&#xF000;https://example.org&#xF000;2&#xF000;https://example.edu"/>

macOS

<dict>
  <key>LocalFileLinks</key>
  <array>
    <string>http://example.org</string>
    <string>http://example.edu</string>
  </array>
</dict>

policies.json

{
  "policies": {
    "LocalFileLinks": ["http://example.org/",
                       "http://example.edu/"]
  }
}

ManagedBookmarks

Configures a list of bookmarks managed by an administrator that cannot be changed by the user.

The bookmarks are only added as a button on the personal toolbar. They are not in the bookmarks folder.

The syntax of this policy is exactly the same as the Chrome ManagedBookmarks policy. The schema is:

{
 "items": {
  "id": "BookmarkType",
  "properties": {
   "children": {
    "items": {
     "$ref": "BookmarkType"
    },
    "type": "array"
   },
   "name": {
    "type": "string"
   },
   "toplevel_name": {
    "type": "string"
   },
   "url": {
    "type": "string"
   }
  },
  "type": "object"
 },
 "type": "array"
}

Compatibility: Firefox 83, Firefox ESR 78.5
CCK2 Equivalent: N/A
Preferences Affected: N/A

Windows (GPO)

Software\Policies\Mozilla\Firefox\ManagedBookmarks (REG_MULTI_SZ) =

[
  {
    "toplevel_name": "My managed bookmarks folder"
  },
  {
    "url": "example.com",
    "name": "Example"
  },
  {
    "name": "Mozilla links",
    "children": [
      {
        "url": "https://mozilla.org",
        "name": "Mozilla.org"
      },
      {
        "url": "https://support.mozilla.org/",
        "name": "SUMO"
      }
    ]
  }
]

Windows (Intune)

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/ManagedBookmarks

Value (string):

<enabled/>
<data id="JSON" value='
[
  {
    "toplevel_name": "My managed bookmarks folder"
  },
  {
    "url": "example.com",
    "name": "Example"
  },
  {
    "name": "Mozilla links",
    "children": [
      {
        "url": "https://mozilla.org",
        "name": "Mozilla.org"
      },
      {
        "url": "https://support.mozilla.org/",
        "name": "SUMO"
      }
    ]
  }
]'/>

macOS

<dict>
  <key>ManagedBookmarks</key>
  <array>
    <dict>
      <key>toplevel_name</key>
      <string>My managed bookmarks folder</string>
      <dict>
        <key>url</key>
        <string>example.com</string>
        <key>name</key>
        <string>Example</string>
      </dict>
      <dict>
      <key>name</key>
      <string>Mozilla links</string>
      <key>children</key>
      <array>
        <dict>
          <key>url</key>
          <string>https://mozilla.org</string>
          <key>name</key>
          <string>Mozilla</string>
        </dict>
        <dict>
          <key>url</key>
          <string>https://support.mozilla.org/</string>
          <key>name</key>
          <string>SUMO</string>
        </dict>
      </array>
    </dict>
  </array>
</dict>

policies.json

{
  "policies": {
    "ManagedBookmarks": [
      {
        "toplevel_name": "My managed bookmarks folder"
      },
      {
        "url": "example.com",
        "name": "Example"
      },
      {
        "name": "Mozilla links",
        "children": [
          {
            "url": "https://mozilla.org",
            "name": "Mozilla.org"
          },
          {
            "url": "https://support.mozilla.org/",
            "name": "SUMO"
          }
        ]
      }
    ]
  }
}

ManualAppUpdateOnly

Switch to manual updates only.

If this policy is enabled:

  1. The user will never be prompted to install updates
  2. Firefox will not check for updates in the background, though it will check automatically when an update UI is displayed (such as the one in the About dialog). This check will be used to show “Update to version X” in the UI, but will not automatically download the update or prompt the user to update in any other way.
  3. The update UI will work as expected, unlike when using DisableAppUpdate.

This policy is primarily intended for advanced end users, not for enterprises.

Compatibility: Firefox 87
CCK2 Equivalent: N/A
Preferences Affected: N/A

policies.json

{
  "policies": {
    "ManualAppUpdateOnly": true | false
  }
}

NetworkPrediction

Enable or disable network prediction (DNS prefetching).

Compatibility: Firefox 67, Firefox ESR 60.7
CCK2 Equivalent: N/A
Preferences Affected: network.dns.disablePrefetch, network.dns.disablePrefetchFromHTTPS

Windows (GPO)

Software\Policies\Mozilla\Firefox\NetworkPrediction = 0x1 | 0x0

Windows (Intune)

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/NetworkPrediction

Value (string):

<enabled/> or <disabled/>

macOS

<dict>
  <key>NetworkPrediction</key>
  <true/> | <false/>
</dict>

policies.json

{
  "policies": {
    "NetworkPrediction": true | false
}

NewTabPage

Enable or disable the New Tab page.

Compatibility: Firefox 68, Firefox ESR 68
CCK2 Equivalent: N/A
Preferences Affected: browser.newtabpage.enabled

Windows (GPO)

Software\Policies\Mozilla\Firefox\NewTabPage = 0x1 | 0x0

Windows (Intune)

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/NewTabPage

Value (string):

<enabled/> or <disabled/>

macOS

<dict>
  <key>NewTabPage</key>
  <true/> | <false/>
</dict>

policies.json

{
  "policies": {
    "NewTabPage": true | false
}

NoDefaultBookmarks

Disable the creation of default bookmarks.

This policy is only effective if the user profile has not been created yet.

Compatibility: Firefox 60, Firefox ESR 60
CCK2 Equivalent: removeDefaultBookmarks
Preferences Affected: N/A

Windows (GPO)

Software\Policies\Mozilla\Firefox\NoDefaultBookmarks = 0x1 | 0x0

Windows (Intune)

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/NoDefaultBookmarks

Value (string):

<enabled/> or <disabled/>

macOS

<dict>
  <key>NoDefaultBookmarks</key>
  <true/> | <false/>
</dict>

policies.json

{
  "policies": {
    "NoDefaultBookmarks": true | false
  }
}

OfferToSaveLogins

Control whether or not Firefox offers to save passwords.

Compatibility: Firefox 60, Firefox ESR 60
CCK2 Equivalent: dontRememberPasswords
Preferences Affected: signon.rememberSignons

Windows (GPO)

Software\Policies\Mozilla\Firefox\OfferToSaveLogins = 0x1 | 0x0

Windows (Intune)

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/OfferToSaveLogins

Value (string):

<enabled/> or <disabled/>

macOS

<dict>
  <key>OfferToSaveLogins</key>
  <true/> | <false/>
</dict>

policies.json

{
  "policies": {
    "OfferToSaveLogins": true | false
  }
}

OfferToSaveLoginsDefault

Sets the default value of signon.rememberSignons without locking it.

Compatibility: Firefox 70, Firefox ESR 60.2
CCK2 Equivalent: dontRememberPasswords
Preferences Affected: signon.rememberSignons

Windows (GPO)

Software\Policies\Mozilla\Firefox\OfferToSaveLoginsDefault = 0x1 | 0x0

Windows (Intune)

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/OfferToSaveLoginsDefault

Value (string):

<enabled/> or <disabled/>

macOS

<dict>
  <key>OfferToSaveLoginsDefault</key>
  <true/> | <false/>
</dict>

policies.json

{
  "policies": {
    "OfferToSaveLoginsDefault": true | false
  }
}

OverrideFirstRunPage

Override the first run page. If the value is an empty string (“”), the first run page is not displayed.

Starting with Firefox 83, Firefox ESR 78.5, you can also specify multiple URLS separated by a vertical bar ( ).

Compatibility: Firefox 60, Firefox ESR 60
CCK2 Equivalent: welcomePage,noWelcomePage
Preferences Affected: startup.homepage_welcome_url

Windows (GPO)

Software\Policies\Mozilla\Firefox\OverrideFirstRunPage = "http://example.org"

Windows (Intune)

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/OverrideFirstRunPage

Value (string):

<enabled/>
<data id="OverridePage" value="https://example.com"/>

macOS

<dict>
  <key>OverrideFirstRunPage</key>
  <string>http://example.org</string>
</dict>

policies.json

{
  "policies": {
    "OverrideFirstRunPage": "http://example.org"
  }
}

OverridePostUpdatePage

Override the upgrade page. If the value is an empty string (“”), no extra pages are displayed when Firefox is upgraded.

Compatibility: Firefox 60, Firefox ESR 60
CCK2 Equivalent: upgradePage,noUpgradePage
Preferences Affected: startup.homepage_override_url

Windows (GPO)

Software\Policies\Mozilla\Firefox\OverridePostUpdatePage = "http://example.org"

Windows (Intune)

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/OverridePostUpdatePage

Value (string):

<enabled/>
<data id="OverridePage" value="https://example.com"/>

macOS

<dict>
  <key>OverridePostUpdatePage</key>
  <string>http://example.org</string>
</dict>

policies.json

{
  "policies": {
    "OverridePostUpdatePage": "http://example.org"
  }
}

PasswordManagerEnabled

Remove access to the password manager via preferences and blocks about:logins on Firefox 70.

Compatibility: Firefox 70, Firefox ESR 60.2
CCK2 Equivalent: N/A
Preferences Affected: pref.privacy.disable_button.view_passwords

Windows (GPO)

Software\Policies\Mozilla\Firefox\PasswordManagerEnabled = 0x1 | 0x0

Windows (Intune)

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/PasswordManagerEnabled

Value (string):

<enabled/> or <disabled/>

macOS

<dict>
  <key>PasswordManagerEnabled</key>
  <true/> | <false/>
</dict>

policies.json

{
  "policies": {
    "PasswordManagerEnabled": true | false
  }
}

PasswordManagerExceptions

Prevent Firefox from saving passwords for specific sites.

The sites are specified as a list of origins.

Compatibility: Firefox 101
CCK2 Equivalent: N/A
Preferences Affected: N/A

Windows (GPO)

Software\Policies\Mozilla\Firefox\PasswordManagerExceptions\1 = "https://example.org"
Software\Policies\Mozilla\Firefox\PasswordManagerExceptions\2 = "https://example.edu"

Windows (Intune)

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/PasswordManagerExceptions

Value (string):

<enabled/>
<data id="List" value="1&#xF000;https://example.org&#xF000;2&#xF000;https://example.edu"/>

macOS

<dict>
  <key>PasswordManagerExceptions</key>
  <array>
    <string>https://example.org</string>
    <string>https://example.edu</string>
  </array>
</dict>

policies.json

{
  "policies": {
    "PasswordManagerExceptions": ["https://example.org",
                                  "https://example.edu"]
  }
}

PDFjs

Disable or configure PDF.js, the built-in PDF viewer.

If Enabled is set to false, the built-in PDF viewer is disabled.

If EnablePermissions is set to true, the built-in PDF viewer will honor document permissions like preventing the copying of text.

Note: DisableBuiltinPDFViewer has not been deprecated. You can either continue to use it, or switch to using PDFjs->Enabled to disable the built-in PDF viewer. This new permission was added because we needed a place for PDFjs->EnabledPermissions.

Compatibility: Firefox 77, Firefox ESR 68.9
CCK2 Equivalent: N/A
Preferences Affected: pdfjs.disabled, pdfjs.enablePermissions

Windows (GPO)

Software\Policies\Mozilla\Firefox\PDFjs\Enabled = 0x1 | 0x0
Software\Policies\Mozilla\Firefox\PDFjs\EnablePermissions = 0x1 | 0x0

Windows (Intune)

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~PDFjs/PDFjs_Enabled
./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~PDFjs/PDFjs_EnablePermissions

Value (string):

<enabled/>or <disabled/>

macOS

<dict>
  <key>PDFjs</key>
  <dict>
    <key>Enabled</key>
    <true/> | <false/>
    <key>EnablePermissions</key>
    <true/> | <false/>
  </dict>
</dict>

policies.json

{
  "policies": {
    "PDFjs": {
      "Enabled": true | false,
      "EnablePermissions": true | false
    }
  }
}

Permissions

Set permissions associated with camera, microphone, location, notifications, autoplay, and virtual reality. Because these are origins, not domains, entries with unique ports must be specified separately. This explicitly means that it is not possible to add wildcards. See examples below.

Allow is a list of origins where the feature is allowed.

Block is a list of origins where the feature is not allowed.

BlockNewRequests determines whether or not new requests can be made for the feature.

Locked prevents the user from changing preferences for the feature.

Default specifies the default value for Autoplay. block-audio-video is not supported on Firefox ESR 68.

Compatibility: Firefox 62, Firefox ESR 60.2 (Autoplay added in Firefox 74, Firefox ESR 68.6, Autoplay Default/Locked added in Firefox 76, Firefox ESR 68.8, VirtualReality added in Firefox 80, Firefox ESR 78.2)
CCK2 Equivalent: N/A
Preferences Affected: permissions.default.camera, permissions.default.microphone, permissions.default.geo, permissions.default.desktop-notification, media.autoplay.default, permissions.default.xr

Windows (GPO)

Software\Policies\Mozilla\Firefox\Permissions\Camera\Allow\1 = "https://example.org"
Software\Policies\Mozilla\Firefox\Permissions\Camera\Allow\2 = "https://example.org:1234"
Software\Policies\Mozilla\Firefox\Permissions\Camera\Block\1 = "https://example.edu"
Software\Policies\Mozilla\Firefox\Permissions\Camera\BlockNewRequests = 0x1 | 0x0
Software\Policies\Mozilla\Firefox\Permissions\Camera\Locked = 0x1 | 0x0
Software\Policies\Mozilla\Firefox\Permissions\Microphone\Allow\1 = "https://example.org"
Software\Policies\Mozilla\Firefox\Permissions\Microphone\Block\1 = "https://example.edu"
Software\Policies\Mozilla\Firefox\Permissions\Microphone\BlockNewRequests = 0x1 | 0x0
Software\Policies\Mozilla\Firefox\Permissions\Microphone\Locked = 0x1 | 0x0
Software\Policies\Mozilla\Firefox\Permissions\Location\Allow\1 = "https://example.org"
Software\Policies\Mozilla\Firefox\Permissions\Location\Block\1 = "https://example.edu"
Software\Policies\Mozilla\Firefox\Permissions\Location\BlockNewRequests = 0x1 | 0x0
Software\Policies\Mozilla\Firefox\Permissions\Location\Locked = 0x1 | 0x0
Software\Policies\Mozilla\Firefox\Permissions\Notifications\Allow\1 = "https://example.org"
Software\Policies\Mozilla\Firefox\Permissions\Notifications\Block\1 = "https://example.edu"
Software\Policies\Mozilla\Firefox\Permissions\Notifications\BlockNewRequests = 0x1 | 0x0
Software\Policies\Mozilla\Firefox\Permissions\Notifications\Locked = 0x1 | 0x0
Software\Policies\Mozilla\Firefox\Permissions\Autoplay\Allow\1 = "https://example.org"
Software\Policies\Mozilla\Firefox\Permissions\Autoplay\Block\1 = "https://example.edu"
Software\Policies\Mozilla\Firefox\Permissions\Autoplay\Default = "allow-audio-video" | "block-audio" | "block-audio-video"
Software\Policies\Mozilla\Firefox\Permissions\Autoplay\Locked = 0x1 | 0x0
Software\Policies\Mozilla\Firefox\Permissions\VirtualReality\Allow\1 = "https://example.org"
Software\Policies\Mozilla\Firefox\Permissions\VirtualReality\Block\1 = "https://example.edu"
Software\Policies\Mozilla\Firefox\Permissions\VirtualReality\BlockNewRequests = 0x1 | 0x0
Software\Policies\Mozilla\Firefox\Permissions\VirtualReality\Locked = 0x1 | 0x0

Windows (Intune)

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Permissions~Location/Location_BlockNewRequests

Value (string):

<enabled/> or <disabled/>

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Permissions~Location/Location_Locked

Value (string):

<enabled/> or <disabled/>

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Permissions~Notifications/Notifications_Allow

Value (string):

<enabled/>
<data id="Permissions" value="1&#xF000;https://example.org"/>

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Permissions~Notifications/Notifications_BlockNewRequests

Value (string):

<enabled/> or <disabled/>

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Permissions~Notifications/Notifications_Locked

Value (string):

<enabled/> or <disabled/>

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Permissions~Autoplay/Autoplay_Allow

Value (string):

<enabled/>
<data id="Permissions" value="1&#xF000;https://example.org"/>

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Permissions~Autoplay/Autoplay_Block

Value (string):

<enabled/>
<data id="Permissions" value="1&#xF000;https://example.edu"/>

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Permissions~Autoplay/Autoplay_Default

Value (string):

<enabled/>
<data id="Autoplay_Default" value="allow-audio-video | block-audio | block-audio-video"/>

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Permissions~Autoplay/Autoplay_Locked

Value (string):

<enabled/> or <disabled/>

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Permissions~Notifications/VirtualReality_Allow

Value (string):

<enabled/>
<data id="Permissions" value="1&#xF000;https://example.org"/>

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Permissions~Notifications/VirtualReality_Block

Value (string):

<enabled/>
<data id="Permissions" value="1&#xF000;https://example.edu"/>

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Permissions~Notifications/VirtualReality_BlockNewRequests

Value (string):

<enabled/> or <disabled/>

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Permissions~Notifications/VirtualReality_Locked

Value (string):

<enabled/> or <disabled/>

macOS

<dict>
  <key>Permissions</key>
  <dict>
    <key>Camera</key>
    <dict>
      <key>Allow</key>
      <array>
        <string>https://example.org</string>
        <string>https://example.org:1234</string>
      </array>
      <key>Block</key>
      <array>
        <string>https://example.edu</string>
      </array>
      <key>BlockNewRequests</key>
      <true/> | <false/>
      <key>Locked</key>
      <true/> | <false/>
    </dict>
    <key>Microphone</key>
    <dict>
      <key>Allow</key>
      <array>
        <string>https://example.org</string>
      </array>
      <key>Block</key>
      <array>
        <string>https://example.edu</string>
      </array>
      <key>BlockNewRequests</key>
      <true/> | <false/>
      <key>Locked</key>
      <true/> | <false/>
    </dict>
    <key>Location</key>
    <dict>
      <key>Allow</key>
      <array>
        <string>https://example.org</string>
      </array>
      <key>Block</key>
      <array>
        <string>https://example.edu</string>
      </array>
      <key>BlockNewRequests</key>
      <true/> | <false/>
      <key>Locked</key>
      <true/> | <false/>
    </dict>
    <key>Notifications</key>
    <dict>
      <key>Allow</key>
      <array>
        <string>https://example.org</string>
      </array>
      <key>Block</key>
      <array>
        <string>https://example.edu</string>
      </array>
      <key>BlockNewRequests</key>
      <true/>
      <key>Locked</key>
      <true/>
    </dict>
    <key>Autoplay</key>
    <dict>
      <key>Allow</key>
      <array>
        <string>https://example.org</string>
      </array>
      <key>Block</key>
      <array>
        <string>https://example.edu</string>
      </array>
      <key>Default</key>
      <string>allow-audio-video | block-audio | block-audio-video</string>
      <key>Locked</key>
      <true/> | <false/>
    </dict>
  </dict>
</dict>

policies.json

{
  "policies": {
    "Permissions": {
      "Camera": {
        "Allow": ["https://example.org","https://example.org:1234"],
        "Block": ["https://example.edu"],
        "BlockNewRequests": true | false,
        "Locked": true | false
      },
      "Microphone": {
        "Allow": ["https://example.org"],
        "Block": ["https://example.edu"],
        "BlockNewRequests": true | false,
        "Locked": true | false
      },
      "Location": {
        "Allow": ["https://example.org"],
        "Block": ["https://example.edu"],
        "BlockNewRequests": true | false,
        "Locked": true | false
      },
      "Notifications": {
        "Allow": ["https://example.org"],
        "Block": ["https://example.edu"],
        "BlockNewRequests": true | false,
        "Locked": true | false
      },
      "Autoplay": {
        "Allow": ["https://example.org"],
        "Block": ["https://example.edu"],
        "Default": "allow-audio-video" | "block-audio" | "block-audio-video",
        "Locked": true | false
      }
    }
  }
}

PictureInPicture

Enable or disable Picture-in-Picture as well as prevent the user from enabling or disabling it (Locked).

Compatibility: Firefox 78, Firefox ESR 78
CCK2 Equivalent: N/A
Preferences Affected: media.videocontrols.picture-in-picture.video-toggle.enabled

Windows (GPO)

Software\Policies\Mozilla\Firefox\PictureInPicture\Enabled = 0x1 | 0x0
Software\Policies\Mozilla\Firefox\PictureInPicture\Locked = 0x1 | 0x0

Windows (Intune)

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~PictureInPicture/PictureInPicture_Enabled
./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~PictureInPicture/PictureInPicture_Locked

Value (string):

<enabled/> or <disabled/>

macOS

<dict>
  <key>PictureInPicture</key>
  <dict>
    <key>Enabled</key>
    <true/> | <false/>
    <key>Locked</key>
    <true/> | <false/>
  </dict>
</dict>

policies.json

{
  "policies": {
    "PictureInPicture": {
      "Enabled": true | false,
      "Locked": true | false
    }
  }
}

PopupBlocking

Configure the default pop-up window policy as well as origins for which pop-up windows are allowed.

Allow is a list of origins where popup-windows are allowed.

Default determines whether or not pop-up windows are allowed by default.

Locked prevents the user from changing pop-up preferences.

Compatibility: Firefox 60, Firefox ESR 60
CCK2 Equivalent: permissions.popup
Preferences Affected: dom.disable_open_during_load

Windows (GPO)

Software\Policies\Mozilla\Firefox\PopupBlocking\Allow\1 = "https://example.org"
Software\Policies\Mozilla\Firefox\PopupBlocking\Allow\2 = "https://example.edu"
Software\Policies\Mozilla\Firefox\PopupBlocking\Default = 0x1 | 0x0
Software\Policies\Mozilla\Firefox\PopupBlocking\Locked = 0x1 | 0x0

Windows (Intune)

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Popups/PopupBlocking_Allow

Value (string):

<enabled/>
<data id="Permissions" value="1&#xF000;https://example.org&#xF000;2&#xF000;https://example.edu"/>

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Popups/PopupBlocking_Default

Value (string):

<enabled/> or <disabled/>

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Popups/PopupBlocking_Locked

Value (string):

<enabled/> or <disabled/>

macOS

<dict>
  <key>PopupBlocking</key>
  <dict>
    <key>Allow</key>
    <array>
      <string>http://example.org</string>
      <string>http://example.edu</string>
    </array>
    <key>Default</key>
    <true/> | <false/>
    <key>Locked</key>
    <true/> | <false/>
  </dict>
</dict>

policies.json

{
  "policies": {
    "PopupBlocking": {
      "Allow": ["http://example.org/",
                "http://example.edu/"],
      "Default": true | false,
      "Locked": true | false
    }
  }
}

Preferences

Set and lock preferences.

NOTE On Windows, in order to use this policy, you must clear all settings in the old Preferences (Deprecated) section in group policy.

Previously you could only set and lock a subset of preferences. Starting with Firefox 81 and Firefox ESR 78.3 you can set many more preferences. You can also set default preferences, user preferences and you can clear preferences.

Preferences that start with the following prefixes are supported:

accessibility.
alerts.* (Firefox 122, Firefox ESR 115.7)
app.update.* (Firefox 86, Firefox ESR 78.8)
browser.
datareporting.policy.
dom.
extensions.
general.autoScroll (Firefox 83, Firefox ESR 78.5)
general.smoothScroll (Firefox 83, Firefox ESR 78.5)
geo.
gfx.
intl.
keyword.enabled (Firefox 95, Firefox ESR 91.4)
layers.
layout.
media.
network.
pdfjs. (Firefox 84, Firefox ESR 78.6)
places.
pref.
print.
signon. (Firefox 83, Firefox ESR 78.5)
spellchecker. (Firefox 84, Firefox ESR 78.6)
toolkit.legacyUserProfileCustomizations.stylesheets (Firefox 95, Firefox ESR 91.4)
ui.
widget.
xpinstall.signatures.required (Firefox ESR 102.10, Firefox ESR only)
xpinstall.whitelist.required (Firefox 118, Firefox ESR 115.3)

as well as the following security preferences:

Preference Type Default
security.default_personal_cert string Ask Every Time
    If set to Select Automatically, Firefox automatically chooses the default personal certificate.    
security.disable_button.openCertManager string N/A
    If set to true and locked, the View Certificates button in preferences is disabled (Firefox 121, Firefox ESR 115.6)    
security.disable_button.openDeviceManager string N/A
    If set to true and locked, the Security Devices button in preferences is disabled (Firefox 121, Firefox ESR 115.6)    
security.insecure_connection_text.enabled bool false
    If set to true, adds the words “Not Secure” for insecure sites.    
security.insecure_connection_text.pbmode.enabled bool false
    If set to true, adds the words “Not Secure” for insecure sites in private browsing.    
security.mixed_content.block_active_content boolean true
    If false, mixed active content (HTTP and HTTPS) is not blocked.    
security.osclientcerts.autoload boolean false
    If true, client certificates are loaded from the operating system certificate store.    
security.OCSP.enabled integer 1
    If 0, do not fetch OCSP. If 1, fetch OCSP for DV and EV certificates. If 2, fetch OCSP only for EV certificates.    
security.OCSP.require boolean false
     If true, if an OCSP request times out, the connection fails.    
security.osclientcerts.assume_rsa_pss_support boolean true
     If false, we don’t assume an RSA key can do RSA-PSS. (Firefox 114, Firefox ESR 102.12)    
security.ssl.enable_ocsp_stapling boolean true
     If false, OCSP stapling is not enabled.    
security.ssl.errorReporting.enabled boolean true
    If false, SSL errors cannot be sent to Mozilla.    
security.ssl.require_safe_negotiation boolean false
    If true, Firefox will only negotiate TLS connections with servers that indicate they support secure renegotiation. (Firefox 118, Firefox ESR 115.3)    
security.tls.enable_0rtt_data boolean true
    If false, TLS early data is turned off. (Firefox 93, Firefox 91.2, Firefox 78.15)    
security.tls.hello_downgrade_check boolean true
    If false, the TLS 1.3 downgrade check is disabled.    
security.tls.version.enable-deprecated boolean false
    If true, browser will accept TLS 1.0. and TLS 1.1. (Firefox 86, Firefox 78.8)    
security.warn_submit_secure_to_insecure boolean true
    If false, no warning is shown when submitting a form from https to http.    

Using the preference as the key, set the Value to the corresponding preference value.

Status can be “default”, “locked”, “user” or “clear”

"user" preferences persist across invocations of Firefox. It is the equivalent of a user setting the preference. They are most useful when a preference is needed very early in startup so it can’t be set as default by policy. An example of this is toolkit.legacyUserProfileCustomizations.stylesheets.

"user" preferences persist even if the policy is removed, so if you need to remove them, you should use the clear policy.

You can also set the Type starting in Firefox 123 and Firefox ESR 115.8. It can be number, boolean or string. This is especially useful if you are seeing 0 or 1 values being converted to booleans when set as user preferences.

See the examples below for more detail.

IMPORTANT: Make sure you’re only setting a particular preference using this mechanism and not some other way.

Status Compatibility: Firefox 81, Firefox ESR 78.3
CCK2 Equivalent: preferences
Preferences Affected: Many

Windows (GPO)

Software\Policies\Mozilla\Firefox\Preferences (REG_MULTI_SZ) =

{
  "accessibility.force_disabled": {
    "Value": 1,
    "Status": "default",
    "Type": "number"

  },
  "browser.cache.disk.parent_directory": {
    "Value": "SOME_NATIVE_PATH",
    "Status": "user"
  },
  "browser.tabs.warnOnClose": {
    "Value": false,
    "Status": "locked"
  }
}

Windows (Intune)

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/Preferences

Value (string):

<enabled/>
<data id="JSON" value='
{
  "accessibility.force_disabled": {
    "Value": 1,
    "Status": "default",
    "Type": "number"
  },
  "browser.cache.disk.parent_directory": {
    "Value": "SOME_NATIVE_PATH",
    "Status": "user"
  },
  "browser.tabs.warnOnClose": {
    "Value": false,
    "Status": "locked"
  }
}'/>

macOS

<dict>
  <key>Preferences</key>
  <dict>
    <key>accessibility.force_disabled</key>
    <dict>
      <key>Value</key>
      <integer>1</integer>
      <key>Status</key>
      <string>default</string>
      <key>Type</key>
      <string>number</string>
    </dict>
    <key>browser.cache.disk.parent_directory</key>
    <dict>
      <key>Value</key>
      <string>SOME_NATIVE_PATH</string>
      <key>Status</key>
      <string>user</string>
    </dict>
    <key>browser.tabs.warnOnClose</key>
    <dict>
      <key>Value</key>
      <false/>
      <key>Status</key>
      <string>locked</string>
    </dict>
  </dict>
</dict>

policies.json

{
  "policies": {
    "Preferences": {
      "accessibility.force_disabled": {
        "Value": 1,
        "Status": "default"
        "Type": "number"
      },
      "browser.cache.disk.parent_directory": {
        "Value": "SOME_NATIVE_PATH",
        "Status": "user"
      },
      "browser.tabs.warnOnClose": {
        "Value": false,
        "Status": "locked"
      }
    }
  }
}

PrimaryPassword

Require or prevent using a primary (formerly master) password.

If this value is true, a primary password is required. If this value is false, it works the same as if DisableMasterPasswordCreation was true and removes the primary password functionality.

If both DisableMasterPasswordCreation and PrimaryPassword are used, DisableMasterPasswordCreation takes precedent.

Compatibility: Firefox 79, Firefox ESR 78.1
CCK2 Equivalent: noMasterPassword
Preferences Affected: N/A

Windows (GPO)

Software\Policies\Mozilla\Firefox\PrimaryPassword = 0x1 | 0x0

Windows (Intune)

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/PrimaryPassword

Value (string):

<enabled/> or <disabled/>

macOS

<dict>
  <key>PrimaryPassword</key>
  <true/> | <false/>
</dict>

policies.json

{
  "policies": {
    "PrimaryPassword": true | false
  }
}

PrintingEnabled

Enable or disable printing.

Compatibility: Firefox 120, Firefox ESR 115.5
CCK2 Equivalent: N/A
Preferences Affected: print.enabled

Windows (GPO)

Software\Policies\Mozilla\Firefox\PrintingEnabled = 0x1 | 0x0

Windows (Intune)

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/PrintingEnabled

Value (string):

<enabled/> or <disabled/>

macOS

<dict>
  <key>PrintingEnabled</key>
  <true/> | <false/>
</dict>

policies.json

{
  "policies": {
    "PrintingEnabled": true | false
  }
}

PromptForDownloadLocation

Ask where to save each file before downloading.

Compatibility: Firefox 68, Firefox ESR 68
CCK2 Equivalent: N/A
Preferences Affected: browser.download.useDownloadDir

Windows (GPO)

Software\Policies\Mozilla\Firefox\PromptForDownloadLocation = 0x1 | 0x0

Windows (Intune)

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/PromptForDownloadLocation

Value (string):

<enabled/> or <disabled/>

macOS

<dict>
  <key>PromptForDownloadLocation</key>
  <true/> | <false/>
</dict>

policies.json

{
  "policies": {
    "PromptForDownloadLocation": true | false
  }
}

Proxy

Configure proxy settings. These settings correspond to the connection settings in Firefox preferences. To specify ports, append them to the hostnames with a colon (:).

Unless you lock this policy, changes the user already has in place will take effect.

Mode is the proxy method being used.

Locked is whether or not proxy settings can be changed.

HTTPProxy is the HTTP proxy server.

UseHTTPProxyForAllProtocols is whether or not the HTTP proxy should be used for all other proxies.

SSLProxy is the SSL proxy server.

FTPProxy is the FTP proxy server.

SOCKSProxy is the SOCKS proxy server

SOCKSVersion is the SOCKS version (4 or 5)

Passthrough is list of hostnames or IP addresses that will not be proxied. Use <local> to bypass proxying for all hostnames which do not contain periods.

AutoConfigURL is a URL for proxy configuration (only used if Mode is autoConfig).

AutoLogin means do not prompt for authentication if password is saved.

UseProxyForDNS to use proxy DNS when using SOCKS v5.

Compatibility: Firefox 60, Firefox ESR 60
CCK2 Equivalent: networkProxy*
Preferences Affected: network.proxy.type, network.proxy.autoconfig_url, network.proxy.socks_remote_dns, signon.autologin.proxy, network.proxy.socks_version, network.proxy.no_proxies_on, network.proxy.share_proxy_settings, network.proxy.http, network.proxy.http_port, network.proxy.ftp, network.proxy.ftp_port, network.proxy.ssl, network.proxy.ssl_port, network.proxy.socks, network.proxy.socks_port

Windows (GPO)

Software\Policies\Mozilla\Firefox\Proxy\Mode = "none" | "system" | "manual" | "autoDetect" | "autoConfig"
Software\Policies\Mozilla\Firefox\Proxy\Locked = 0x1 | 0x0
Software\Policies\Mozilla\Firefox\Proxy\HTTPProxy = https://httpproxy.example.com
Software\Policies\Mozilla\Firefox\Proxy\UseHTTPProxyForAllProtocols = 0x1 | 0x0
Software\Policies\Mozilla\Firefox\Proxy\SSLProxy = https://sslproxy.example.com
Software\Policies\Mozilla\Firefox\Proxy\FTPProxy = https://ftpproxy.example.com
Software\Policies\Mozilla\Firefox\Proxy\SOCKSProxy = https://socksproxy.example.com
Software\Policies\Mozilla\Firefox\Proxy\SOCKSVersion = 0x4 | 0x5
Software\Policies\Mozilla\Firefox\Proxy\Passthrough = <local>
Software\Policies\Mozilla\Firefox\Proxy\AutoConfigURL = URL_TO_AUTOCONFIG
Software\Policies\Mozilla\Firefox\Proxy\AutoLogin = 0x1 | 0x0
Software\Policies\Mozilla\Firefox\Proxy\UseProxyForDNS = 0x1 | 0x0

Windows (Intune)

Note These setttings were moved to a category to make them easier to configure via Intune.

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~ProxySettings/Proxy_Locked

Value (string):

<enabled/> or <disabled/>

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~ProxySettings/Proxy_ConnectionType

Value (string):

<enabled/>
<data id="Proxy_ConnectionType" value="none | system | manual | autoDetect | autoConfig"/>

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~ProxySettings/Proxy_HTTPProxy

Value (string):

<enabled/>
<data id="Proxy_HTTPProxy" value="httpproxy.example.com"/>

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~ProxySettings/Proxy_UseHTTPProxyForAllProtocols

Value (string):

<enabled/> or <disabled/>

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~ProxySettings/Proxy_SSLProxy

Value (string):

<enabled/>
<data id="Proxy_SSLProxy" value="sslproxy.example.com"/>

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~ProxySettings/Proxy_SOCKSProxy

Value (string):

<enabled/>
<data id="Proxy_SOCKSProxy" value="socksproxy.example.com"/>
<data id="Proxy_SOCKSVersion" value="4 | 5"/>

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~ProxySettings/Proxy_AutoConfigURL

Value (string):

<enabled/>
<data id="Proxy_AutoConfigURL" value="URL_TO_AUTOCONFIG"/>

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~ProxySettings/Proxy_Passthrough

Value (string):

<enabled/>
<data id="Proxy_Passthrough" value="&lt;local&gt;"/>

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~ProxySettings/Proxy_AutoLogin

Value (string):

<enabled/> or <disabled/>

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~ProxySettings/Proxy_UseProxyForDNS

Value (string):

<enabled/> or <disabled/>

OMA-URI (Old way):

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/Proxy

Value (string):

<enabled/>
<data id="ProxyLocked" value="true | false"/>
<data id="ConnectionType" value="none | system | manual | autoDetect | autoConfig"/>
<data id="HTTPProxy" value="httpproxy.example.com"/>
<data id="UseHTTPProxyForAllProtocols" value="true | false"/>
<data id="SSLProxy" value="sslproxy.example.com"/>
<data id="FTPProxy" value="ftpproxy.example.com"/>
<data id="SOCKSProxy" value="socksproxy.example.com"/>
<data id="SOCKSVersion" value="4 | 5"/>
<data id="AutoConfigURL" value="URL_TO_AUTOCONFIG"/>
<data id="Passthrough" value="<local>"/>
<data id="AutoLogin" value="true | false"/>
<data id="UseProxyForDNS" value="true | false"/>

macOS

<dict>
  <key>Proxy</key>
  <dict>
    <key>Mode</key>
    <string>none | system | manual | autoDetect | autoConfig</string>
    <key>Locked</key>
    <true> | </false>
    <key>HTTPProxy</key>
    <string>https://httpproxy.example.com</string>
    <key>UseHTTPProxyForAllProtocols</key>
    <true> | </false>
    <key>SSLProxy</key>
    <string>https://sslproxy.example.com</string>
    <key>FTPProxy</key>
    <string>https://ftpproxy.example.com</string>
    <key>SOCKSProxy</key>
    <string>https://socksproxy.example.com</string>
    <key>SOCKSVersion</key>
    <string>4 | 5</string>
    <key>Passthrough</key>
    <string>&lt;local>&gt;</string>
    <key>AutoConfigURL</key>
    <string>URL_TO_AUTOCONFIG</string>
    <key>AutoLogin</key>
    <true> | </false>
    <key>UseProxyForDNS</key>
    <true> | </false>
  </dict>
</dict>

policies.json

{
  "policies": {
    "Proxy": {
      "Mode": "none" | "system" | "manual" | "autoDetect" | "autoConfig",
      "Locked": true | false,
      "HTTPProxy": "hostname",
      "UseHTTPProxyForAllProtocols": true | false,
      "SSLProxy": "hostname",
      "FTPProxy": "hostname",
      "SOCKSProxy": "hostname",
      "SOCKSVersion": 4 | 5,
      "Passthrough": "<local>",
      "AutoConfigURL": "URL_TO_AUTOCONFIG",
      "AutoLogin": true | false,
      "UseProxyForDNS": true | false
    }
  }
}

RequestedLocales

Set the the list of requested locales for the application in order of preference. It will cause the corresponding language pack to become active.

Note: For Firefox 68, this can now be a string so that you can specify an empty value.

Compatibility: Firefox 64, Firefox ESR 60.4, Updated in Firefox 68, Firefox ESR 68
CCK2 Equivalent: N/A
Preferences Affected: N/A

Windows (GPO)

Software\Policies\Mozilla\Firefox\RequestedLocales\1 = "de"
Software\Policies\Mozilla\Firefox\RequestedLocales\2 = "en-US"

or

Software\Policies\Mozilla\Firefox\RequestedLocales = "de,en-US"

Windows (Intune)

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/RequestedLocalesString

Value (string):

<enabled/>
<data id="Preferences_String" value="de,en-US"/>

macOS

<dict>
  <key>RequestedLocales</key>
  <array>
    <string>de</string>
    <string>en-US</string>
  </array>
</dict>

or

<dict>
  <key>RequestedLocales</key>
  <string>de,en-US</string>
</dict>

policies.json

{
  "policies": {
    "RequestedLocales": ["de", "en-US"]
  }
}

or

{
  "policies": {
    "RequestedLocales": "de,en-US"
  }
}

SanitizeOnShutdown (Selective)

Clear data on shutdown. Choose from Cache, Cookies, Download History, Form & Search History, Browsing History, Active Logins, Site Preferences and Offline Website Data.

Previously, these values were always locked. Starting with Firefox 74 and Firefox ESR 68.6, you can use the Locked option to either keep the values unlocked (set it to false), or lock only the values you set (set it to true). If you want the old behavior of locking everything, do not set Locked at all.

Compatibility: Firefox 68, Firefox ESR 68 (Locked added in 74/68.6)
CCK2 Equivalent: N/A
Preferences Affected: privacy.sanitize.sanitizeOnShutdown, privacy.clearOnShutdown.cache, privacy.clearOnShutdown.cookies, privacy.clearOnShutdown.downloads, privacy.clearOnShutdown.formdata, privacy.clearOnShutdown.history, privacy.clearOnShutdown.sessions, privacy.clearOnShutdown.siteSettings, privacy.clearOnShutdown.offlineApps

Windows (GPO)

Software\Policies\Mozilla\Firefox\SanitizeOnShutdown\Cache = 0x1 | 0x0
Software\Policies\Mozilla\Firefox\SanitizeOnShutdown\Cookies = 0x1 | 0x0
Software\Policies\Mozilla\Firefox\SanitizeOnShutdown\Downloads = 0x1 | 0x0
Software\Policies\Mozilla\Firefox\SanitizeOnShutdown\FormData = 0x1 | 0x0
Software\Policies\Mozilla\Firefox\SanitizeOnShutdown\History = 0x1 | 0x0
Software\Policies\Mozilla\Firefox\SanitizeOnShutdown\Sessions = 0x1 | 0x0
Software\Policies\Mozilla\Firefox\SanitizeOnShutdown\SiteSettings = 0x1 | 0x0
Software\Policies\Mozilla\Firefox\SanitizeOnShutdown\OfflineApps = 0x1 | 0x0
Software\Policies\Mozilla\Firefox\SanitizeOnShutdown\Locked = 0x1 | 0x0

Windows (Intune)

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~SanitizeOnShutdown/A_SanitizeOnShutdown_Cache

Value (string):

<enabled/> or <disabled/>

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~SanitizeOnShutdown/B_SanitizeOnShutdown_Cookies

Value (string):

<enabled/> or <disabled/>

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~SanitizeOnShutdown/C_SanitizeOnShutdown_Downloads

Value (string):

<enabled/> or <disabled/>

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~SanitizeOnShutdown/D_SanitizeOnShutdown_FormData

Value (string):

<enabled/> or <disabled/>

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~SanitizeOnShutdown/E_SanitizeOnShutdown_History

Value (string):

<enabled/> or <disabled/>

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~SanitizeOnShutdown/F_SanitizeOnShutdown_Sessions

Value (string):

<enabled/> or <disabled/>

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~SanitizeOnShutdown/G_SanitizeOnShutdown_SiteSettings

Value (string):

<enabled/> or <disabled/>

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~SanitizeOnShutdown/H_SanitizeOnShutdown_OfflineApps

Value (string):

<enabled/> or <disabled/>

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~SanitizeOnShutdown/I_SanitizeOnShutdown_Locked

Value (string):

<enabled/> or <disabled/>

macOS

<dict>
  <key>SanitizeOnShutdown</key>
  <dict>
    <key>Cache</key>
    <true/> | <false/>
    <key>Cookies</key>
    <true/> | <false/>
    <key>Downloads</key>
    <true/> | <false/>
    <key>FormData</key>
    <true/> | <false/>
    <key>History</key>
    <true/> | <false/>
    <key>Sessions</key>
    <true/> | <false/>
    <key>SiteSettings</key>
    <true/> | <false/>
    <key>OfflineApps</key>
    <true/> | <false/>
    <key>Locked</key>
    <true/> | <false/>
  </dict>
</dict>

policies.json

{
  "policies": {
    "SanitizeOnShutdown": {
      "Cache": true | false,
      "Cookies": true | false,
      "Downloads": true | false,
      "FormData": true | false,
      "History": true | false,
      "Sessions": true | false,
      "SiteSettings": true | false,
      "OfflineApps": true | false,
      "Locked": true | false
    }
  }
}

SanitizeOnShutdown (All)

Clear all data on shutdown, including Browsing & Download History, Cookies, Active Logins, Cache, Form & Search History, Site Preferences and Offline Website Data.

Compatibility: Firefox 60, Firefox ESR 60
CCK2 Equivalent: N/A
Preferences Affected: privacy.sanitize.sanitizeOnShutdown, privacy.clearOnShutdown.cache, privacy.clearOnShutdown.cookies, privacy.clearOnShutdown.downloads, privacy.clearOnShutdown.formdata, privacy.clearOnShutdown.history, privacy.clearOnShutdown.sessions, privacy.clearOnShutdown.siteSettings, privacy.clearOnShutdown.offlineApps

Windows (GPO)

Software\Policies\Mozilla\Firefox\SanitizeOnShutdown = 0x1 | 0x0

Windows (Intune)

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/C_SanitizeOnShutdown

Value (string):

<enabled/> or <disabled/>

macOS

<dict>
  <key>SanitizeOnShutdown</key>
  <true/> | <false/>
</dict>

policies.json

{
  "policies": {
    "SanitizeOnShutdown": true | false
  }
}

Set whether or not search bar is displayed.

Compatibility: Firefox 60, Firefox ESR 60
CCK2 Equivalent: showSearchBar
Preferences Affected: N/A

Windows (GPO)

Software\Policies\Mozilla\Firefox\SearchBar = "unified" | "separate"

Windows (Intune)

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/SearchBar

Value (string):

<enabled/>
<data id="SearchBar" value="unified | separate"/>

macOS

<dict>
  <key>SearchBar</key>
  <string>unified | separate</string>
</dict>

policies.json

{
  "policies": {
    "SearchBar": "unified" | "separate"
  }
}

SearchEngines (This policy is only available on the ESR.)

SearchEngines | Add

Add new search engines. Although there are only five engines available in the ADMX template, there is no limit. To add more in the ADMX template, you can duplicate the XML.

This policy is only available on the ESR. Name and URLTemplate are required.

Name is the name of the search engine.

URLTemplate is the search URL with {searchTerms} to substitute for the search term.

Method is either GET or POST

IconURL is a URL for the icon to use.

Alias is a keyword to use for the engine.

Description is a description of the search engine.

PostData is the POST data as name value pairs separated by &.

SuggestURLTemplate is a search suggestions URL with {searchTerms} to substitute for the search term.

Encoding is the query charset for the engine. It defaults to UTF-8.

Compatibility: Firefox ESR 60 (POST support in Firefox ESR 68, Encoding support in Firefox 91)
CCK2 Equivalent: searchplugins
Preferences Affected: N/A

Windows (GPO)

Software\Policies\Mozilla\Firefox\SearchEngines\Add\1\Name = "Example1"
Software\Policies\Mozilla\Firefox\SearchEngines\Add\1\URLTemplate = "https://www.example.org/q={searchTerms}"
Software\Policies\Mozilla\Firefox\SearchEngines\Add\1\Method = "GET" | "POST"
Software\Policies\Mozilla\Firefox\SearchEngines\Add\1\IconURL = "https://www.example.org/favicon.ico"
Software\Policies\Mozilla\Firefox\SearchEngines\Add\1\Alias = "example"
Software\Policies\Mozilla\Firefox\SearchEngines\Add\1\Description = "Example Description"
Software\Policies\Mozilla\Firefox\SearchEngines\Add\1\SuggestURLTemplate = "https://www.example.org/suggestions/q={searchTerms}"
Software\Policies\Mozilla\Firefox\SearchEngines\Add\1\PostData = "name=value&q={searchTerms}"

Windows (Intune)

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Search/SearchEngines_1

Value (string):

<enabled/>
<data id="SearchEngine_Name" value="Example1"/>
<data id="SearchEngine_URLTemplate" value="https://www.example.org/q={searchTerms"/>
<data id="SearchEngine_Method" value="GET | POST"/>
<data id="SearchEngine_IconURL" value="https://www.example.org/favicon.ico"/>
<data id="SearchEngine_Alias" value="example"/>
<data id="SearchEngine_Description" value="Example Description"/>
<data id="SearchEngine_SuggestURLTemplate" value="https://www.example.org/suggestions/q={searchTerms}"/>
<data id="SearchEngine_PostData" value="name=value&amp;q={searchTerms}"/>

macOS

<dict>
  <key>SearchEngines</key>
  <dict>
    <key>Add</key>
    <array>
      <dict>
        <key>Name</key>
        <string>Example1</string>
        <key>URLTemplate</key>
        <string>https://www.example.org/q={searchTerms}</string>
        <key>Method</key>
        <string>GET | POST </string>
        <key>IconURL</key>
        <string>https://www.example.org/favicon.ico</string>
        <key>Alias</key>
        <string>example</string>
        <key>Description</key>
        <string>Example Description</string>
        <key>SuggestURLTemplate</key>
        <string>https://www.example.org/suggestions/q={searchTerms}</string>
        <key>PostData</key>
        <string>name=value&q={searchTerms}</string>
      </dict>
    <array>
  </dict>
</dict>

policies.json

{
  "policies": {
    "SearchEngines": {
      "Add": [
        {
          "Name": "Example1",
          "URLTemplate": "https://www.example.org/q={searchTerms}",
          "Method": "GET" | "POST",
          "IconURL": "https://www.example.org/favicon.ico",
          "Alias": "example",
          "Description": "Description",
          "PostData": "name=value&q={searchTerms}",
          "SuggestURLTemplate": "https://www.example.org/suggestions/q={searchTerms}"
        }
      ]
    }
  }
}

SearchEngines | Default

Set the default search engine. This policy is only available on the ESR.

Compatibility: Firefox ESR 60
CCK2 Equivalent: defaultSearchEngine
Preferences Affected: N/A

Windows (GPO)

Software\Policies\Mozilla\Firefox\SearchEngines\Default = NAME_OF_SEARCH_ENGINE

Windows (Intune)

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Search/SearchEngines_Default

Value (string):

<enabled/>
<data id="SearchEngines_Default" value="NAME_OF_SEARCH_ENGINE"/>

macOS

<dict>
  <key>SearchEngines</key>
  <dict>
    <key>Default</key>
    <string>NAME_OF_SEARCH_ENGINE</string>
  </dict>
</dict>

policies.json

{
  "policies": {
    "SearchEngines": {
      "Default": "NAME_OF_SEARCH_ENGINE"
    }
  }
}

SearchEngines | PreventInstalls

Prevent installing search engines from webpages.

Compatibility: Firefox ESR 60
CCK2 Equivalent: disableSearchEngineInstall
Preferences Affected: N/A

Windows (GPO)

Software\Policies\Mozilla\Firefox\SearchEngines\PreventInstalls = 0x1 | 0x0

Windows (Intune)

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Search/SearchEngines_PreventInstalls

Value (string):

<enabled/> or <disabled/>

macOS

<dict>
  <key>SearchEngines</key>
  <dict>
    <key>PreventInstalls</key>
    <true/> | <false/>
  </dict>
</dict>

policies.json

{
  "policies": {
    "SearchEngines": {
      "PreventInstalls": true | false
    }
  }
}

SearchEngines | Remove

Hide built-in search engines. This policy is only available on the ESR.

Compatibility: Firefox ESR 60.2
CCK2 Equivalent: removeDefaultSearchEngines (removed all built-in engines)
Preferences Affected: N/A

Windows (GPO)

Software\Policies\Mozilla\Firefox\SearchEngines\Remove\1 = NAME_OF_SEARCH_ENGINE

Windows (Intune)

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Search/SearchEngines_Remove

Value (string):

<enabled/>
<data id="SearchEngines_Remove" value="1&#xF000;NAME_OF_SEARCH_ENGINE"/>

macOS

<dict>
  <key>SearchEngines</key>
  <dict>
    <key>Remove</key>
    <array>
      <string>NAME_OF_SEARCH_ENGINE</string>
    </array>
  </dict>
</dict>

policies.json

{
  "policies": {
    "SearchEngines": {
      "Remove": ["NAME_OF_SEARCH_ENGINE"]
    }
  }
}

SearchSuggestEnabled

Enable search suggestions.

Compatibility: Firefox 68, Firefox ESR 68
CCK2 Equivalent: N/A
Preferences Affected: browser.urlbar.suggest.searches, browser.search.suggest.enabled

Windows (GPO)

Software\Policies\Mozilla\Firefox\SearchSuggestEnabled = 0x1 | 0x0

Windows (Intune)

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Search/SearchSuggestEnabled

Value (string):

<enabled/> or <disabled/>

macOS

<dict>
  <key>SearchSuggestEnabled</key>
  <true/> | <false/>
</dict>

policies.json

{
  "policies": {
    "SearchSuggestEnabled": true | false
  }
}

SecurityDevices

Add or delete PKCS #11 modules.

Compatibility: Firefox 114, Firefox ESR 112.12
CCK2 Equivalent: N/A
Preferences Affected: N/A

Windows (GPO)

Software\Policies\Mozilla\Firefox\SecurityDevices\Add\NAME_OF_DEVICE_TO_ADD = PATH_TO_LIBRARY_FOR_DEVICE
Software\Policies\Mozilla\Firefox\SecurityDevices\Remove\1 = NAME_OF_DEVICE_TO_REMOVE

Windows (Intune)

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/SecurityDevices/SecurityDevices_Add

Value (string):

<enabled/>
<data id="SecurityDevices" value="NAME_OF_DEVICE_TO_ADD&#xF000;PATH_TO_LIBRARY_FOR_DEVICE"/>

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/SecurityDevices/SecurityDevices_Delete

Value (string):

<enabled/>
<data id="SecurityDevices" value="1&#xF000;NAME_OF_DEVICE_TO_REMOVE"/>

macOS

<dict>
  <key>SecurityDevices</key>
  <dict>
    <key>Add<key>
    <dict>
      <key>NAME_OF_DEVICE_TO_ADD</key>
      <string>PATH_TO_LIBRARY_FOR_DEVICE</string>
    </dict>
    <key>Delete</add>
    <array>
      <string>NAME_OF_DEVICE_TO_DELETE</string>
    </array>
  </dict>
</dict>

policies.json

{
  "policies": {
    "SecurityDevices": {
      "Add": {
        "NAME_OF_DEVICE_TO_ADD": "PATH_TO_LIBRARY_FOR_DEVICE"
      },
      "Delete": ["NAME_OF_DEVICE_TO_DELETE"]
    }
  }
}

SecurityDevices (Deprecated)

Install PKCS #11 modules.

Compatibility: Firefox 64, Firefox ESR 60.4
CCK2 Equivalent: certs.devices
Preferences Affected: N/A

Windows (GPO)

Software\Policies\Mozilla\Firefox\SecurityDevices\NAME_OF_DEVICE = PATH_TO_LIBRARY_FOR_DEVICE

Windows (Intune)

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/SecurityDevices

Value (string):

<enabled/>
<data id="SecurityDevices" value="NAME_OF_DEVICE&#xF000;PATH_TO_LIBRARY_FOR_DEVICE"/>

macOS

<dict>
  <key>SecurityDevices</key>
  <dict>
    <key>NAME_OF_DEVICE</key>
    <string>PATH_TO_LIBRARY_FOR_DEVICE</string>
  </dict>
</dict>

policies.json

{
  "policies": {
    "SecurityDevices": {
      "NAME_OF_DEVICE": "PATH_TO_LIBRARY_FOR_DEVICE"
    }
  }
}

ShowHomeButton

Show the home button on the toolbar.

Future versions of Firefox will not show the home button by default.

Compatibility: Firefox 88, Firefox ESR 78.10
CCK2 Equivalent: N/A
Preferences Affected: N/A

Windows (GPO)

Software\Policies\Mozilla\Firefox\ShowHomeButton = 0x1 | 0x0

Windows (Intune)

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Homepage/Homepage_ShowHomeButton

Value (string):

<enabled/> or <disabled/>

macOS

<dict>
  <key>ShowHomeButton</key>
  <true/> | <false/>
</dict>

policies.json

{
  "policies": {
    "ShowHomeButton": true | false
  }
}

SSLVersionMax

Set and lock the maximum version of TLS. (Firefox defaults to a maximum of TLS 1.3.)

Compatibility: Firefox 66, Firefox ESR 60.6
CCK2 Equivalent: N/A
Preferences Affected: security.tls.version.max

Windows (GPO)

Software\Policies\Mozilla\Firefox\SSLVersionMax = "tls1" | "tls1.1" | "tls1.2" | "tls1.3"

Windows (Intune)

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/SSLVersionMax

Value (string):

<enabled/>
<data id="SSLVersion" value="tls1 | tls1.2 | tls1.3"/>

macOS

<dict>
  <key>SSLVersionMax</key>
  <string>tls1 | tls1.1 | tls1.2 | tls1.3</string>
</dict>

policies.json

{
  "policies": {
    "SSLVersionMax": "tls1" | "tls1.1" | "tls1.2" | "tls1.3"
  }
}

SSLVersionMin

Set and lock the minimum version of TLS. (Firefox defaults to a minimum of TLS 1.2.)

Compatibility: Firefox 66, Firefox ESR 60.6
CCK2 Equivalent: N/A
Preferences Affected: security.tls.version.min

Windows (GPO)

Software\Policies\Mozilla\Firefox\SSLVersionMin = "tls1" | "tls1.1" | "tls1.2" | "tls1.3"

Windows (Intune)

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/SSLVersionMin

Value (string):

<enabled/>
<data id="SSLVersion" value="tls1 | tls1.2 | tls1.3"/>

macOS

<dict>
  <key>SSLVersionMin</key>
  <string>tls1 | tls1.1 | tls1.2 | tls1.3</string>
</dict>

policies.json

{
  "policies": {
    "SSLVersionMin": "tls1" | "tls1.1" | "tls1.2" | "tls1.3"
  }
}

SupportMenu

Add a menuitem to the help menu for specifying support information.

Compatibility: Firefox 68.0.1, Firefox ESR 68.0.1
CCK2 Equivalent: helpMenu
Preferences Affected: N/A

Windows (GPO)

Software\Policies\Mozilla\Firefox\SupportMenu\Title = "Support Menu"
Software\Policies\Mozilla\Firefox\SupportMenu\URL = "http://example.com/support"
Software\Policies\Mozilla\Firefox\SupportMenu\AccessKey = "S"

Windows (Intune)

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/SupportMenu

Value (string):

<enabled/>
<data id="SupportMenuTitle" value="Support Menu"/>
<data id="SupportMenuURL" value="http://example.com/support"/>
<data id="SupportMenuAccessKey" value="S"/>

macOS

<dict>
  <key>SupportMenu</key>
  <dict>
    <key>Title</key>
    <string>SupportMenu</string>
    <key>URL</key>
    <string>http://example.com/support</string>
    <key>AccessKey</key>
    <string>S</string>
  </dict>
</dict>

policies.json

{
  "policies": {
    "SupportMenu": {
      "Title": "Support Menu",
      "URL": "http://example.com/support",
      "AccessKey": "S"
    }
  }
}

StartDownloadsInTempDirectory

Force downloads to start off in a local, temporary location rather than the default download directory.

Compatibility: Firefox 102
CCK2 Equivalent: N/A
Preferences Affected: browser.download.start_downloads_in_tmp_dir

Windows (GPO)

Software\Policies\Mozilla\Firefox\StartDownloadsInTempDirectory = 0x1 | 0x0

Windows (Intune)

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/StartDownloadsInTempDirectory

Value (string):

<enabled/> or <disabled/>

macOS

<dict>
  <key>StartDownloadsInTempDirectory</key>
  <true/> | <false/>
</dict>

policies.json

{
  "policies": {
    "StartDownloadsInTempDirectory": true | false
}

UserMessaging

Prevent Firefox from messaging the user in certain situations.

WhatsNew Remove the “What’s New” icon and menuitem.

ExtensionRecommendations If false, don’t recommend extensions while the user is visiting web pages.

FeatureRecommendations If false, don’t recommend browser features.

UrlbarInterventions If false, Don’t offer Firefox specific suggestions in the URL bar.

SkipOnboarding If true, don’t show onboarding messages on the new tab page.

MoreFromMozilla If false, don’t show the “More from Mozilla” section in Preferences. (Firefox 98)

Locked prevents the user from changing user messaging preferences.

Compatibility: Firefox 75, Firefox ESR 68.7
CCK2 Equivalent: N/A
Preferences Affected: browser.messaging-system.whatsNewPanel.enabled, browser.newtabpage.activity-stream.asrouter.userprefs.cfr.addons, browser.newtabpage.activity-stream.asrouter.userprefs.cfr.features, browser.aboutwelcome.enabled, browser.preferences.moreFromMozilla

Windows (GPO)

Software\Policies\Mozilla\Firefox\UserMessaging\WhatsNew = 0x1 | 0x0
Software\Policies\Mozilla\Firefox\UserMessaging\ExtensionRecommendations = 0x1 | 0x0
Software\Policies\Mozilla\Firefox\UserMessaging\FeatureRecommendations = 0x1 | 0x0
Software\Policies\Mozilla\Firefox\UserMessaging\UrlbarInterventions = 0x1 | 0x0
Software\Policies\Mozilla\Firefox\UserMessaging\SkipOnboarding = 0x1 | 0x0
Software\Policies\Mozilla\Firefox\UserMessaging\MoreFromMozilla = 0x1 | 0x0
Software\Policies\Mozilla\Firefox\UserMessaging\Locked = 0x1 | 0x0

Windows (Intune)

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~UserMessaging/UserMessaging_WhatsNew
./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~UserMessaging/UserMessaging_ExtensionRecommendations
./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~UserMessaging/UserMessaging_FeatureRecommendations
./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~UserMessaging/UserMessaging_UrlbarInterventions
./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~UserMessaging/UserMessaging_SkipOnboarding
./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~UserMessaging/UserMessaging_MoreFromMozilla
./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~UserMessaging/UserMessaging_Locked

Value (string):

<enabled/> or <disabled/>

macOS

<dict>
  <key>UserMessaging</key>
  <dict>
    <key>WhatsNew</key>
    <true/> | <false/>
    <key>ExtensionRecommendations</key>
    <true/> | <false/>
    <key>FeatureRecommendations</key>
    <true/> | <false/>
    <key>UrlbarInterventions</key>
    <true/> | <false/>
    <key>SkipOnboarding</key>
    <true/> | <false/>
    <key>MoreFromMozilla</key>
    <true/> | <false/>
    <key>Locked</key>
    <true/> | <false/>
  </dict>
</dict>

policies.json

{
  "policies": {
    "UserMessaging": {
      "WhatsNew": true | false,
      "ExtensionRecommendations": true | false,
      "FeatureRecommendations": true | false,
      "UrlbarInterventions": true | false,
      "SkipOnboarding": true | false,
      "MoreFromMozilla": true | false,
      "Locked": true | false
    }
  }
}

UseSystemPrintDialog

Use the system print dialog instead of the print preview window.

Compatibility: Firefox 102
CCK2 Equivalent: N/A
Preferences Affected: print.prefer_system_dialog

Windows (GPO)

Software\Policies\Mozilla\Firefox\UseSystemPrintDialog = 0x1 | 0x0

Windows (Intune)

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/UseSystemPrintDialog

Value (string):

<enabled/> or <disabled/>

macOS

<dict>
  <key>UseSystemPrintDialog</key>
  <true/> | <false/>
</dict>

policies.json

{
  "policies": {
    "UseSystemPrintDialog": true | false
  }
}

WebsiteFilter

Block websites from being visited. The parameters take an array of Match Patterns, as documented in https://developer.mozilla.org/en-US/Add-ons/WebExtensions/Match_patterns. The arrays are limited to 1000 entries each.

If you want to block all URLs, you can use <all_urls> or *://*/*. You can’t have just a * on the right side.

For specific protocols, use https://*/* or http://*/*.

As of Firefox 83 and Firefox ESR 78.5, file URLs are supported.

Compatibility: Firefox 60, Firefox ESR 60
CCK2 Equivalent: N/A
Preferences Affected: N/A

Windows (GPO)

Software\Policies\Mozilla\Firefox\WebsiteFilter\Block\1 = "<all_urls>"
Software\Policies\Mozilla\Firefox\WebsiteFilter\Exceptions\1 = "http://example.org/*"

Windows (Intune)

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/B_WebsiteFilter_Block

Value (string):

<enabled/> <data id="WebsiteFilter" value="1&#xF000;&#60;all_urls&#62;"/>

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/B_WebsiteFilter_Exceptions

Value (string):

<enabled/>
<data id="WebsiteFilter" value="1&#xF000;http://example.org/*"/>

macOS

<dict>
  <key>WebsiteFilter</key>
  <dict>
    <key>Block</key>
    <array>
      <string><all_urls></string>
    </array>
    <key>Exceptions</key>
    <array>
      <string>http://example.org/*</string>
    </array>
  </dict>

</dict>

policies.json

{
  "policies": {
    "WebsiteFilter": {
      "Block": ["<all_urls>"],
      "Exceptions": ["http://example.org/*"]
    }
  }
}

WindowsSSO

Allow Windows single sign-on for Microsoft, work, and school accounts.

If this policy is set to true, Firefox will use credentials stored in Windows to sign in to Microsoft, work, and school accounts.

Compatibility: Firefox 91
CCK2 Equivalent: N/A
Preferences Affected: network.http.windows-sso.enabled

Windows (GPO)

Software\Policies\Mozilla\Firefox\WindowsSSO = 0x1 | 0x0

Windows (Intune)

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/WindowsSSO

Value (string):

<enabled/> or <disabled/>

policies.json

{
  "policies": {
    "WindowsSSO": true | false
  }
}