Normally a browser will make one request at a time to a webpage, by increasing the number of requests we make to a webpage we can Increase the speed at which the page loads, the following tweaks will let you achieve that.
Type “about:config” without the quotes into the address bar of your Firefox browser and hit Enter. Search for the following entries:
Toggle network.http.pipelining and network.http.proxy.pipelining to true by right clicking on them and selecting toggle.
Modify network.http.pipelining.maxrequests to a number like 15 by right clicking on it and selecting modify and specifying the number, this means that it would make 15 requests of the webpage that you visit aiding in loading the webpage faster.
The following tweak will speed up Firefox by reducing the amount of time Firefox takes before displaying the information it receives.
Right-click anywhere and select New-> Integer
and name it "nglayout.initialpaint.delay” without the quotes
and enter the integer value as “0”.