Where did you install Firefox from? Help Mozilla uncover 3rd party websites that offer problematic Firefox installation by taking part in our campaign. There will be swag, and you'll be featured in our blog if you manage to report at least 10 valid reports!

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

When I try to open a webpage, I get a message--Firefox is already running and you need to restart your system--however, Firefox is NOT running. It doesn't even show up in the taskbar as running. Restarting works but it is quite a bother. Thanks.

  • 2 replies
  • 2 have this problem
  • 4 views
  • Last reply by drawman61

more options

When I try to open a webpage, I get a message--Firefox is already running and you need to restart your system--however, Firefox is NOT running. It doesn't even show up in the taskbar as running. Restarting works but it is quite a bother. Thanks.

When I try to open a webpage, I get a message--Firefox is already running and you need to restart your system--however, Firefox is NOT running. It doesn't even show up in the taskbar as running. Restarting works but it is quite a bother. Thanks.

All Replies (2)

more options
more options

Give it 10 seconds or so and try again. I usually find the original page takes a few seconds to disappear.