| **[`AppAutoUpdate`](#appautoupdate)** | Enable or disable automatic application update.
| **[`AppUpdateURL`](#appupdateurl)** | Change the URL for application update.
| **[`Authentication`](#authentication)** | Configure sites that support integrated authentication.
-| **[`BackgroundAppUpdate`](#backgroundappupdate)** | Enable or disable automatic application update in the background, when the application is not running.
+| **[`BackgroundAppUpdate`](#backgroundappupdate)** | Enable or disable the background updater (Windows only).
| **[`BlockAboutAddons`](#blockaboutaddons)** | Block access to the Add-ons Manager (about:addons).
| **[`BlockAboutConfig`](#blockaboutconfig)** | Block access to about:config.
| **[`BlockAboutProfiles`](#blockaboutprofiles)** | Block access to About Profiles (about:profiles).
If you have disabled updates via `DisableAppUpdate` or disabled automatic updates via `AppUpdateAuto`, this policy has no effect.
-**Compatibility:** Firefox 90\
+**Compatibility:** Firefox 90 (Windows only)\
**CCK2 Equivalent:** N/A\
**Preferences Affected:** `app.update.background.enabled`