Firefox has a small memory leakage problems that can cause your pc to freeze up. basically what happens is when you minimize Firefox it stops consuming memory, however when you maximize it again the memory usage will increase, sometimes even doubling. fortunately, there is a small fix that you can implement.
A cool little trick that one can put in use to optimize RAM usage by Firefox:
1> Open ‘Firefox‘
2> Go to the ‘Address Bar‘
3> Type in ‘about:config‘ and hit Enter.
4> Right Click on the page that loads up and select ‘New‘->’Boolean‘.
5> Enter ‘config.trim_on_minimize‘ in the box that pops up and select OK / hit enter.
6> Select the value as ‘True‘ and select Enter.
7> Restart a much better and faster Firefox.
Increase the Speed at Which Firefox loads pages
1. Type about:config into the address bar and hit Enter.
(Normally the browser will make 1 request to a web page at a time which is wack. When you enable pipelining it will make several at once, which really speeds up page loading.)
2. Alter the entries as follows:
Set network.http.pipelining to true
Set network.http.proxy.pipelining to true
Set network.http.pipelining.maxrequests to some number like 12.
This means it will make 12 requests at once.
3. Lastly, right-click anywhere and select New-> Integer. Name it nglayout.initialpaint.delay and set its value to 0
And that is how we speed up newest version of Mozilla Firefox 3.0.8 and all other versions.