Enable background updates on Firefox for Windows

Firefox version 90 introduces background updates, a feature that checks for, downloads, and installs updates in the background. This way, you will have the latest version of Firefox available every time you open the browser. Once you’ve enabled background updates, Firefox will check for updates every 7 hours when the browser is not in use.

This feature will be released gradually and has a few requirements to be able to run. To enable or disable the functionality, follow the steps below:

  1. Click on the Firefox menu Fx89menuButton button and then go to Settings.
  2. In the General panel, scroll down to the Firefox Updates section.
  3. Select the Automatically install updates (recommended) setting and check or uncheck the box next to When Firefox is not running to enable or disable the feature.

Advanced users can make this feature available ahead of the release schedule, by following the steps below:

  1. Type about:config in the address bar and press EnterReturn.
    A warning page may appear. Click Accept the Risk and Continue to go to the about:config page.
  2. Search for app.update.background.scheduling.enabled.
  3. Toggle this preference to True to enable background updates or to False to disable them.
  4. Restart Firefox for the changes to take effect.

Requirements to run:

  • Firefox must have been installed with the installer (not from, for example, a ZIP).
  • The Mozilla Maintenance Service must be usable (installed and not disabled). When installing with the Firefox installer, this is the default.
  • Firefox must have a default profile, and it must run using that profile at least once after the feature is enabled.
  • Firefox must not have a language pack installed.
  • Firefox connection settings must be configured to use the system proxy (this is the default).

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