Update Firefox to the latest release

Revision Information
  • Revision id: 243979
  • Created:
  • Creator: Chris Ilias
  • Comment: Changed warning to note, simplified download links to one link. Removed malware bullet.
  • Reviewed: Yes
  • Reviewed:
  • Reviewed by: AliceWyman
  • Is approved? No
  • Is current revision? No
  • Ready for localization: No
Revision Source
Revision Content
Note: If you use your Linux distribution's packaged version of Firefox, you 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: If you installed Firefox from the Microsoft Store, then you will receive Firefox updates through the Microsoft Store. This article only applies if you installed Firefox by downloading it from Mozilla. To check for Firefox updates on the Microsoft Store, see this Microsoft article.

By default, Firefox updates automatically. You can always check for updates at any time, in which case an update is downloaded, but it is not installed until you restart Firefox.

Update Firefox

  1. Click the menu button Fx89menuButton at the right side of the Firefox toolbar, go to Help, and select About Firefox.In the menu bar, open 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 available, it will be downloaded.
    fx91AboutDownloadingUpdatefx70Linux-AboutFirefox-Downloadingfx71macOS-AboutFirefox-Downloading
  3. When the download is complete, click Restart to update Firefox.
    fx91AboutRestartUpdatefx70Linux-AboutFirefox-Restartfx71macOS-AboutFirefox-Restart
Having problems?

If you're having problems updating Firefox, close Firefox then download and run the installer.
All of your data will be preserved.

Note: Update settings can be changed in FirefoxSettings . In the Menu bar at the top of the screen, click Firefox and select Settings (select Preferences on older macOS versions).Click the menu button Fx89menuButton and select Settings. In the General panel, go to the Firefox Updates section.