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Firefox crashes as soon as I open it in Windows 7

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I am running a 32 bit computer & I use Windows 7. I have not had any problems with Firefox until the past week or so. My system will crash no matter what site I am on & now I am unable to even open Firefox. My shortcut icons do not work either. I reinstalled Firefox & that helped for a day or two but now I am back to the same problem.

User Agent

Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; Trident/4.0; GTB6.4; Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1) ; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; Tablet PC 2.0; msn OptimizedIE8;ENUS)

I am running a 32 bit computer & I use Windows 7. I have not had any problems with Firefox until the past week or so. My system will crash no matter what site I am on & now I am unable to even open Firefox. My shortcut icons do not work either. I reinstalled Firefox & that helped for a day or two but now I am back to the same problem. == User Agent == Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; Trident/4.0; GTB6.4; Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1) ; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; Tablet PC 2.0; msn OptimizedIE8;ENUS)

Chosen solution

Can you start in Firefox Safe Mode? See Diagnose Firefox issues using Troubleshoot Mode

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Chosen Solution

Can you start in Firefox Safe Mode? See Diagnose Firefox issues using Troubleshoot Mode