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!

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

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

Firefox refuses to start, saying that it's already running, must restart window in the end.

FelixTan
FelixTan
more options

This error message shows up: "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."

This error message shows up: "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."

Solution eye eponami

Please upgrade your browser to Firefox 8 and check

Tanga eyano oyo ndenge esengeli 👍 0

All Replies (1)

Swarnava Sengupta
Swarnava Sengupta
  • Locale Leader
more options

Solution eye oponami

Please upgrade your browser to Firefox 8 and check