Join the Mozilla’s Test Days event from 9–15 Jan to test the new Firefox address bar on Firefox Beta 135 and get a chance to win Mozilla swag vouchers! 🎁

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

close firefox

more options

Firefox is already running, but is not responding. The old Firefox process must be closed to open a new window, this happens all the time, how can I get rid of it please

Firefox is already running, but is not responding. The old Firefox process must be closed to open a new window, this happens all the time, how can I get rid of it please

All Replies (2)

more options
more options