Trick To Make Your Firefox Fast

Type about:config in the address bar, Then look for the following entries, and make the corresponding changes.  
1.    network.http.max-connections-per-server =32
2.    network.http.max-persistent-connections-per-proxy =16
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!!