Locking duplicate. Please continue with original question [/questions/967487] --------------------- When I open up Firefox on my windows 7 it pops up the common error message 'server not found'. I've tried everything to get it to connect. I turn off firewalls and proxy, scanned with an anti vires program (avg) disabled all extensions and add-on and plug-ins. Nothing is working and will not connect... Please help meeeee