We're calling on all EU-based Mozillians with iOS or iPadOS devices to help us monitor Apple’s new browser choice screens. Join the effort to hold Big Tech to account!

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

Mulongo oyo etiyamaki na archive. Tuna motuna mosusu soki osengeli na lisalisi

I can't open Firefox Brower on my laptop.

  • 3 biyano
  • 2 eza na bankokoso oyo
  • 9 views
  • Eyano yasuka ya McCoy

more options

I keep getting window message " Firefox is already running. The old firefox process must be closed. " I have tried uninstalling and reinstalling but keep getting the same problem

I keep getting window message " Firefox is already running. The old firefox process must be closed. " I have tried uninstalling and reinstalling but keep getting the same problem

All Replies (3)

more options

Hello djrpai,

Would you please take a look at these articles :

https://support.mozilla.org/en-US/kb/firefox-already-running-not-responding

and :

https://www.askvg.com/fix-firefox-is-already-running-but-is-not-responding-error-message/

'Hope one of those will work for you .....

more options

Do you by any chance use Kaspersky ?

I'm asking because of the OPs last post in this thread :

https://support.mozilla.org/en-US/questions/1271943

Also see :

Two users having the same problem in this thread :

https://support.mozilla.org/en-US/questions/1272635

And another one here :

https://support.mozilla.org/en-US/questions/1272576

more options

Just in case that you are using Kaspersky; please see this thread :

https://support.mozilla.org/en-US/questions/1272635