firefox will not start after computer restart

Try this *https://support.mozilla.org/en-US/kb/firefox-wont-start-find-solutions Open TaskManager, if it running '''firefox.exe''' > end all processes Sometimes a problem with Firefox may be a result of malware installed on your computer, that you may not be aware of. You can try these free programs to scan for malware, which work with your existing antivirus software: * [http://www.microsoft.com/security/scanner/default.aspx Microsoft Safety Scanner] * [http://www.malwarebytes.org/products/malwarebytes_free/ MalwareBytes' Anti-Malware] * [http://support.kaspersky.com/faq/?qid=208283363 TDSSKiller - AntiRootkit Utility] * [http://www.surfright.nl/en/hitmanpro/ Hitman Pro] * [http://www.eset.com/us/online-scanner/ ESET Online Scanner] [http://windows.microsoft.com/MSE Microsoft Security Essentials] is a good permanent antivirus for Windows 7/Vista/XP if you don't already have one. Further information can be found in the [[Troubleshoot Firefox issues caused by malware]] article. Did this fix your problems? Please report back to us!

Thank you iamjayakumars. I have performed a complete system restore. The problem I described is after the restore. After trying to start firefox, task manager does not show firefox running. After starting firefox and waiting a very long time to see what happens, a script error occured. After a couple of times trying the wait game, a type of script error was shown. I found this link on support, seems to be what is happening, but as you see that fix did not help either. https://support.mozilla.org/en-US/questions/980011?esab=a&as=s&r=0&page=2