This tricks will improve the speed & load time of firefox. And you will be able to surf faster.
Type about:config in the address bar, Then look for the following entries, and make the corresponding changes.
3.network.http.max-connections = 64
4.network.http.max-persistent-connections-per-server = 10
5.network.http.pipelining = true
6.network.http.pipelining.maxrequests = 200
7.network.http.request.max-start-delay = 0
8.network.http.proxy.pipelining = true
9.network.http.proxy.version = 1.0
Lastly right-click anywhere and select New- Integer. Name it nglayout.initialpaint.delay and set its value to 0. This value is the amount of time the browser waits before it acts on information it recieves.Enjoy!!