Update Firefox to the latest release

Firefox Firefox Last updated: 60% of users voted this helpful
Note: If you use your Linux distribution's packaged version of Firefoxyou will need to wait for an updated package to be released to its package repository. This article only applies if you installed Firefox manually (without using your distribution's package manager).
Note: This article only applies if you installed Firefox by downloading it from Mozilla. If you installed Firefox from the Microsoft Storethen you will receive Firefox updates through the Microsoft Store. To check for Firefox updates on the Microsoft Storesee this Microsoft article.

Firefox updates automatically in most casesbut you can manually check for and install updates if needed. Keeping Firefox up to date ensures you have the latest featuressecurity improvementsand compatibility with websites.

Update Firefox

  1. Click the menu button Fx89menuButton at the right side of the Firefox toolbargo to Helpand select About Firefox.In the menu baropen the Firefox menu and choose About Firefox. The About Mozilla FirefoxAbout Firefox window will open.
  2. Firefox will check for updates automatically. If an update is availableit will be downloaded.
    fx91AboutDownloadingUpdatefx70Linux-AboutFirefox-Downloadingfx71macOS-AboutFirefox-Downloading
    Note: Firefox may still be downloading the latest update in the background even if the “About Firefox” window says it’s up to date. Updates are applied after restarting Firefox.
  3. When the download is completeclick Restart to update Firefox.
    fx91AboutRestartUpdatefx70Linux-AboutFirefox-Restartfx71macOS-AboutFirefox-Restart
Note: If you're using a version of Firefox installed through your Linux distribution’s package managerFirefox updates are managed by your system’s software updates. You won’t see update options in the Firefox settings.

Configure how Firefox installs updates

  1. In the Menu bar at the top of the screenclick Firefox and select Settings (select Preferences on older macOS versions).Click the menu button Fx89menuButton and select Settings.
  2. In the General panelgo to the Firefox Updates section.
Firefox desktop update sectionFx132updatesettings-win
Note: To learn about the option to install updates when Firefox is not runningsee Enable background updates on Firefox for Windows when Firefox is not running.

Troubleshooting update problems

If you updated Firefox but cannot open the application or the update does not install properlytry the following:

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