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All websites are blank pages..?

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I recently downloaded Firefox, I've always used internet explorer with no problem. But Firefox is not working at all, it does not even start to load websites, but immediately goes to a 100% blank page with the header,"(untitled)". What should I do?

URL of affected sites

http://

User Agent

Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; SU 3.26; .NET CLR 1.0.3705; .NET CLR 1.1.4322; Media Center PC 4.0; .NET CLR 2.0.50727; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729)

I recently downloaded Firefox, I've always used internet explorer with no problem. But Firefox is not working at all, it does not even start to load websites, but immediately goes to a 100% blank page with the header,"(untitled)". What should I do? == URL of affected sites == http:// == User Agent == Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; SU 3.26; .NET CLR 1.0.3705; .NET CLR 1.1.4322; Media Center PC 4.0; .NET CLR 2.0.50727; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729)

All Replies (1)

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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