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

I lost the Firefox 3.6 because it says it was corrupt, now I have lost all of my bookmarks

  • 1 reply
  • 5 have this problem
  • Last reply by cor-el

more options

I had been running Firefox 3.6 and then I lost it and when I try to open it it is giving me a message that the file is corrupt. I can open the Firefox 2 but I have now lost all of my bookmarks.

All Replies (1)

more options

The Firefox 2 bookmarks are not compatible with Firefox 3 and later versions.
You will have to reinstall Firefox 3.6 to get all your profile data back.

Do a clean (re)install:

  • Download a fresh Firefox copy from and save the file to the desktop.
  • Uninstall your current Firefox version and remove the Firefox program folder before installing that copy of the Firefox installer.
  • Don't remove personal data when uninstalling.
  • It is important to delete the Firefox program folder to remove all the files and make sure that there are no problems with files that were leftover after uninstalling.

Your bookmarks and other profile data are stored elsewhere (not in the Firefox program folder) and won't be affected by a reinstall, but make sure that you do not select to remove personal data if you uninstall Firefox.

See also and Back up and restore information in Firefox profiles