Windows 10 reached EOS (end of support) on October 14, 2025. If you are on Windows 10, see this article.

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
This thread was archived. Please ask a new question if you need help.
Archived

Firefox is already running, but is not responding. The old Firefox process must be closed to open a new window.

Firefox Troubleshooting
cor-el replied
twenning
twenning

Firefox is already running, but is not responding. The old Firefox process must be closed to open a new window.

Firefox is already running, but is not responding. The old Firefox process must be closed to open a new window.

All Replies (1)

cor-el
cor-el
  • Moderator

See: