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"
  }
}