The only thing IE is good for is downloading Firefox.

I am a huge fan of Mozilla Firefox, honestly if you still use IE, immediately proceed to Mozilla.com and install Firefox.

This tweak, really sped up my overall Firefox experience, which was already great - props to the author..

Basically (the way I understand it - please correct me if I am way off) it changes the way Ffox pings a web server.. instead of sending individual requests it sends 30 - a little tougher on the webserver but much better for you...