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Firefox does not load up, open up when I click the icon, or when I go to firefox using the start menu.


I downloaded firefox 4 and used it for a few days and then it ceased to open up when I clicked the icon or went through the start menu. I uninstalled and reinstalled it and it still does not open.

Additional System Details

Installed Plug-ins



  • User Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; WOW64; Trident/4.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; HPNTDF; BRI/1; .NET4.0C; AskTbMOV/

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alan_r 58 solutions 753 answers

Have you tried opening in Safe Mode - Hold down the Shift key as you double click.

Your Ask Toolbar is a known problem.

If Safe Mode works you can work your way through this -


Question owner

I was able to open firefox in safe mode, worked through the troubleshooting techniques before restarting it, but it did not restart the second time...even in safe mode. I rebooted the computer and it still did not restart. I will uninstall it.