DisableSystemAddonUpdate

Prevent system add-ons from being installed or updated.

System add-ons are built-in Firefox features that are implemented as extensions so that Mozilla can ship and update them independently of the Firefox release cycle. Because Firefox treats them as part of the browser rather than as user add-ons, they are not managed from the Add-ons Manager.

If this policy is set to true, Firefox does not install new system add-ons or update existing system add-ons through the system add-on update mechanism.

Compatibility

Firefox	Firefox ESR	Firefox Enterprise
Available since 60	Available since 60	Available since 149

CCK2 Equivalent: N/A
OMA-URI: DisableSystemAddonUpdate
Preferences Affected: N/A

Examples

{
  "policies": {
    "DisableSystemAddonUpdate": true
  }
}

JSON schema

{
  "type": "boolean"
}

Windows (GPO)

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

macOS

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

See also

System Add-ons Overview on firefox-source-docs.mozilla.org