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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.

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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.

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.

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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 -

https://support.mozilla.com/en-US/kb/Troubleshooting%20extensions%20and%20themes

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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.