Join the AMA (Ask Me Anything) with the Firefox leadership team to celebrate Firefox 20th anniversary and discuss Firefox’s future on Mozilla Connect. Mark your calendar on Thursday, November 14, 18:00 - 20:00 UTC!

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 cavab
  • 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)