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!

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

cannot close firefox process, even after uninstalling and reinstalling firefox,and ending precess in task manager

  • 1 reply
  • 24 have this problem
  • 5 views
  • Paskiausią atsakymą parašė AnonymousUser

more options

Firefox will not open, says "already running". At task manager I cancelled process, and still no result. I then uninstalled all firefox files, and reinstalled. I still get same error message. I cannot open any firefox page. I have skype. I followed troubleshooting info, an d still I cannot open firefox.

This happened

Every time Firefox opened

== I restarted my computer

Firefox will not open, says "already running". At task manager I cancelled process, and still no result. I then uninstalled all firefox files, and reinstalled. I still get same error message. I cannot open any firefox page. I have skype. I followed troubleshooting info, an d still I cannot open firefox. == This happened == Every time Firefox opened == I restarted my computer

All Replies (1)

more options

I removed the program and reinstalled by with no success, i get allways the same massage: "Firefox is already running, but is not responding. To open a new window, you must first close the existing Firefox process, or restart your system." I don't know what to do can someone give directions Thank you