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.

Avatar for Username

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

Este fío arquivouse. Faga unha nova pregunta se precisa axuda.

Firefox is running in the background but I can't open it. I need to explain more.

  • 5 respostas
  • 2 have this problem
  • 1 view
  • Last reply by finitarry

jepaulson
jepaulson
more options

I think I enabled an add on after which FX wouldn't open. In any event FX will not open now. My PC is running Window 7. I went into task manager and closed any FX processes that were running. Still wouldn't open. Then I tried uninstalling FX and reinstalling. I got a message that said I couldn't do that because FX was running. Then I tried reinstalling FX and again I got the message that I couldn't do that because it was running. Then I went in and deleted all the FX program files and reinstalled. Once again it wouldn't start. Any suggestions?

I think I enabled an add on after which FX wouldn't open. In any event FX will not open now. My PC is running Window 7. I went into task manager and closed any FX processes that were running. Still wouldn't open. Then I tried uninstalling FX and reinstalling. I got a message that said I couldn't do that because FX was running. Then I tried reinstalling FX and again I got the message that I couldn't do that because it was running. Then I went in and deleted all the FX program files and reinstalled. Once again it wouldn't start. Any suggestions?

All Replies (5)

user633449
user633449
more options

Restart your PC, then download Firefox from www.getfirefox.com and install it. Restart again, does it open now?

finitarry
finitarry
more options

Also, try this page:

user633449 modificouno o

jepaulson
jepaulson Question owner
more options

I have tried your suggestion but FX still won't open. Any other ideas? Thanks.

jepaulson
jepaulson Question owner
more options

I have tried your suggestions and FX still won't open. Things I have tried are ending FX processes, restarting, removing "parent lock" from the FX profile - still no luck. Any further ideas? Thanks.

finitarry
finitarry
more options

The original suggestion was to get another copy of the Firefox installer and re-install it.