EncryptedMediaExtensions

Enable or disable Encrypted Media Extensions and optionally lock it.

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

Values

• 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.

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
    }
  }
}