Firefox - Silent extensions installation

Control the installation, uninstallation and locking of extensions.

While this policy is not technically deprecated, it is recommended 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.

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"]
    }
  }
}