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I get this message: Only one copy of Firefox can be open at a time.

Posted

My computer shut down suddenly. When I rebooted it I had lost all of my Firefox bookmarks. I saw the notice that this sometimes happens with security software. After I restarted the computer and nothing happened, I contacted Norton Security. They tried several things but none worked. However during the course of the 2 1/2 hour process I have lost access to Firefox completely. When I click on the icon I get the message "A copy of Firefox is already open. Only one copy of Firefox can be open at a time." I re-downloaded Firefox 3.6.8, but nothing changed. Then I tried to follow the directions about "parent folders" in a Firefox forum, but I did not find them that clear. Is there an easy way for me to recover Firefox and my bookmarks/history?

Operating system

Mac OS X

My computer shut down suddenly. When I rebooted it I had lost all of my Firefox bookmarks. I saw the notice that this sometimes happens with security software. After I restarted the computer and nothing happened, I contacted Norton Security. They tried several things but none worked. However during the course of the 2 1/2 hour process I have lost access to Firefox completely. When I click on the icon I get the message "A copy of Firefox is already open. Only one copy of Firefox can be open at a time." I re-downloaded Firefox 3.6.8, but nothing changed. Then I tried to follow the directions about "parent folders" in a Firefox forum, but I did not find them that clear. Is there an easy way for me to recover Firefox and my bookmarks/history? == Operating system == Mac OS X

Additional System Details

Application

  • User Agent: Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10_6_4; en-us) AppleWebKit/533.16 (KHTML, like Gecko) Version/5.0 Safari/533.16

More Information

cor-el
  • Top 10 Contributor
  • Moderator
17763 solutions 160641 answers
Did you delete your [http://kb.mozillazine.org/Profile_folder_-_Firefox Firefox Profile Folder] or files in the profile folder? See: http://kb.mozillazine.org/Locked_or_damaged_places.sqlite http://kb.mozillazine.org/Recovering_a_missing_profile

Question owner

Thanks for the suggestion. However, Firefox will not load, so I cannot get to those files to see what I can do.

Thanks for the suggestion. However, Firefox will not load, so I cannot get to those files to see what I can do.

Question owner

Okay - I have managed now to get into Firefox using another browser. I'll keep working at it.

Okay - I have managed now to get into Firefox using another browser. I'll keep working at it.

Question owner

Doesn't look like I can recover the bookmarks. I tried using the Firefox back-up, deleting profiles, etc. - but nothing seems to work.

Doesn't look like I can recover the bookmarks. I tried using the Firefox back-up, deleting profiles, etc. - but nothing seems to work.
cor-el
  • Top 10 Contributor
  • Moderator
17763 solutions 160641 answers
Did you try a new profile? See http://kb.mozillazine.org/Standard_diagnostic_-_Firefox#Profile_issues