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

I get the following message 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. but can't close the program without rebooting

  • 1 reply
  • 4 have this problem
  • 1 view
  • Last reply by cor-el

more options

Can't close Firefox in windows 7 without rebooting

This happened

Not sure how often

== After upgrading to 3.6.3

Can't close Firefox in windows 7 without rebooting == This happened == Not sure how often == After upgrading to 3.6.3

All Replies (1)

more options