Update Firefox to the latest release

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

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).
  1. Click the menu button Fx89menuButton, click Help and select About Firefox.Click the menu button Fx57Menu, click Fx57HelpHelp and select About Firefox.On the Menu bar, click the Firefox menu and select About Firefox.
  2. The About Mozilla FirefoxAbout Firefox window opens. Firefox will check for updates and, if an update is available, it will be downloaded automatically by default.
    fx91AboutDownloadingUpdatefx70Linux-AboutFirefox-Downloadingfx71macOS-AboutFirefox-Downloading
  3. When the download is complete, click Restart to update Firefox.
    fx91AboutRestartUpdatefx70Linux-AboutFirefox-Restartfx71macOS-AboutFirefox-Restart
  • If you are on a Mac computer with Apple Silicon and update from an older version to Firefox 84 or higher, you will need to fully exit and restart Firefox after the update (as explained here).
Important: If the update did not start, did not complete or there was some other problem, go to the Systems & Languages page to download and install the latest version of Firefox for your system and language. You can also use this download page (see How to install Firefox on WindowsInstall Firefox on LinuxHow to download and install Firefox on Mac for more information).

Stay safe: Download only from the official Mozilla links above to avoid malware and other online threats.

Note: Update settings can be changed in Firefox OptionsPreferencesSettings .

In the Menu bar at the top of the screen, click Firefox and select Preferences. Click the menu button Fx57Menu and select OptionsPreferences.Click the menu button Fx89menuButton and select Settings.

In the General panel, go to the Firefox Updates section.

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