Alot of servers are set up to enable standard internet explorer settings on all browsers which blocks all browsers from bypassing the websense or similar firewall. I used to use portable firefox but I can no longer bypass the firewall with it. http://forums.xisto.com/no_longer_exists/ is good proxy site and is free. Or alternatively use the IP address for http://netsack.net/ (This site is better but is blocked by websense, can only be accessed by pinging the site on your command prompt and using the IP address instead of the Web address) Pinging alot of your fav sites will work but firewall providers have caught onto this and are beginning to block some.(for those who dont know how to ping, you simply type in the word PING followed by a space and the web address for the site you want, hit enter and the command prompt will show you the IP address. Use this instead of standard web address)