Firefox is the fastest browser around. Heres a little tweak that's easy to do and sends the browser into overdrive.
All you've got to do is type "about
:config" into your address bar, wait for it to load, then alter the following entries:
change "network.http.pipelining" to "true", "network.http.proxy.pipelining" to "true" and lastly "network.http.pipelining.maxrequests" to 30, meaning it will be able to make 30 requests at once.
Alternately You can simply install this .xpi
http://hedonist-x.com/mirror/firefox...ork-1.0-fx.xpi
then, open Firefox and under "Tools" use the Tweak Network Settings GUI and then make the changes.