how to make firefox run faster

http://www.ehow.com/video_4767131_make-firefox-run-faster.html

steps :
1.type about:config in the url box
2.hit i will be careful ,i promise
3.a lot will be list there
4.in that

type network.http.pip

 double click the first one 

then type network.http.prox

 now right click the second one 

 

as shown

now type the name 

nglayout.initialpaint.delay 

now type there 86
then type here again network.http.pip

 

 now make it as user set (just a double click )

now enjoy and comment