We're calling on all EU-based Mozillians with iOS or iPadOS devices to help us monitor Apple’s new browser choice screens. Join the effort to hold Big Tech to account!

This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Natao arisiva ity resaka mitohy ity. Mametraha fanontaniana azafady raha mila fanampiana.

Message to updte to version 50 keeps appearing when its already installed

  • 1 valiny
  • 1 manana an'ity olana ity
  • 3 views
  • Valiny farany nomen'i cor-el

more options

Mac OS X El Capitan

Every time i start Firefox on all user accounts i get the message to restart to upgrade to version 50. I am already running version 50. When i go to the update history it says version 49 not 50. I have refreshed Firefox and downloaded a new version 50 and re-installed. Still no joy,

I keep getting the restart message every time Firefox is opened..

I have heard that its possible to delete the update history but its not obvious where it is

Does anyone else have the same problem?

Mac OS X El Capitan Every time i start Firefox on all user accounts i get the message to restart to upgrade to version 50. I am already running version 50. When i go to the update history it says version 49 not 50. I have refreshed Firefox and downloaded a new version 50 and re-installed. Still no joy, I keep getting the restart message every time Firefox is opened.. I have heard that its possible to delete the update history but its not obvious where it is Does anyone else have the same problem?

All Replies (1)

more options

You can check for problems with preferences.

Delete possible user.js and numbered prefs-##.js files and rename/remove the prefs.js file to reset all prefs to the default value including prefs set via user.js and prefs that are no longer supported in current Firefox releases.

You can use this button to go to the current Firefox profile folder:


Try to download the full version of the current release. Trash the currently installed Firefox application to do a clean reinstall. Verify that all files in Firefox.app are gone.

  • /Applications/Firefox.app/
  • /Applications/Firefox.app/updates/

Download a new copy of the Firefox application and save the Disk Image file to the desktop

Your personal data like bookmarks is stored in the Firefox profile folder, so you won't lose personal data when you uninstall and reinstall or update Firefox, but make sure NOT to remove personal data when you uninstall Firefox as that will remove all Firefox profile folders and you lose your personal data.

Novain'i cor-el t@