Trick To Make Your Firefox Fast

Type about:config in the address bar, Then look for the following entries, and make the corresponding changes.  

network.http.max-connections-per-server =32

network.http.max-persistent-connections-per-proxy =16

network.http.max-connections = 64

network.http.max-persistent-connections-per-server = 10

                                           network.http.pipelining = true

                                                       network.http.pipelining.maxrequests = 200

                                                       network.http.request.max-start-delay = 0

                                                       network.http.proxy.pipelining = true

                                                       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 receives. Enjoy!!