I have reinstalled Firefox lots of times and found every site to help but i still can't open firefox. May someone help me?
Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.0; SLCC1; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30618)
A possible cause is security software (firewall) that blocks or restricts Firefox without informing you about that, maybe 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 Configure firewalls so that Firefox can access the Internet and http://kb.mozillazine.org/Firewalls
I tried your way but it still doesn't work. Does installing google chrome make this happen? I installed Chrome and then I can't open Firefox.
well I uninstalled it couple of times and I can't even use Safe mode. The Firefox just doesn't start!!!!!!!!!!!!!!!!