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

Everytime I try to open firefox it says it is already running. I restarted it, and unistalled it and it still says it's running?? What to do?

  • 1 reply
  • 21 have this problem
  • 12 views
  • Last reply by cor-el

more options

When I try to open firerox I get a pop up saying it's already running? I checked the taskbar to see if there are any firefox running, there were not, so I restarted my computer and I still got the same error message. So then I uninstalled firefox from my computer and then reinstalled, now I'm still getting the SAME error message!

When I try to open firerox I get a pop up saying it's already running? I checked the taskbar to see if there are any firefox running, there were not, so I restarted my computer and I still got the same error message. So then I uninstalled firefox from my computer and then reinstalled, now I'm still getting the SAME error message!

All Replies (1)