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!

Søg i 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

Firefox will not open even with new profile

more options

When I attempt to open Firefox nothing happens on screen. I have created a new profile still no joy. In the Windows Task Master Process window Firefox.exe is shown. I have attempted to update Firefox no joy I have uninstalled and reinstalled Firefox still no joy. I know that it is working in the background but where and how can I bring it to the foreground

When I attempt to open Firefox nothing happens on screen. I have created a new profile still no joy. In the Windows Task Master Process window Firefox.exe is shown. I have attempted to update Firefox no joy I have uninstalled and reinstalled Firefox still no joy. I know that it is working in the background but where and how can I bring it to the foreground

Alle svar (2)

more options

A possible cause is security software (firewall) that blocks or restricts Firefox without informing you about that, possibly after detecting changes (update) to the Firefox program.

Remove all rules for Firefox from the permissions list in the firewall and let your firewall ask again for permission to get full unrestricted access to internet for Firefox.

See Server Not Found - Troubleshoot connection problems and Configure firewalls so that Firefox can access the Internet and http://kb.mozillazine.org/Firewalls

See also http://kb.mozillazine.org/Browser_will_not_start_up

more options

Hi cor-el, and thanks Have checked the Firewall that is ok and have allowed any mention of Firefox to have Internet acess , still no joy, I am using Zone Alarm. I do not get any messages when I attempt open Fire Fox just the browser does not open. I can see in the Task Manager that Firefox has started and is sitting idle but no Browser window. I End Task in the Task Manager before I attempt to start Fire Fox again after I have made any changes such as the changes to Zone Alarm as mentioned before. Then I attempt to start Firefox again and still no joy.