How to Speed Up Firefox web browser, Internet Speed, Internet Tips and Tricks
Mozilla Firefox
  is a graphical web browser developed by the Mozilla Corporation.  
Started as a fork of the browser component (Navigator) of the Mozilla  
Application Suite, Firefox has replaced the Mozilla Suite as the  
flagship product of the Mozilla project, stewarded by the Mozilla  
Foundation and a large community of external contributors. 
 
Mozilla Firefox is a cross-platform  browser, providing support for various versions of Microsoft Windows,  Mac OS X, and Linux. Although not officially released for certain  operating systems,
 the freely available source code works for many other  operating 
systems, including FreeBSD,OS/2, Solaris, SkyOS, BeOS and  more 
recently, 
Windows XP
  Professional x64 Edition.
These are some Very Useful Tips to speedup your Firefox.
In your location bar, type 
about:config 
Once it Opens You should see similar to the following screen
 Tip No: 1
Tip No: 1
In the filter bar type 
network.http.pipelining
You should see the following screen
 
Normally it says ” false ” under value field , Double click it so it  becomes ” true “.
Once you finished this you should see the following screen.
 Tip No: 2
Tip No: 2
In the filter bar again and type 
network.http.pipelining.maxrequests
Once it Opens You should see the following screen
 
Default it says 4 under value field and you need to change it to 8
Once you finished this you should see the following screen.
 Tip No: 3
Tip No: 3
Go to the filter bar again and type 
network.http.proxy.pipelining
Once it Opens You should see similar to the following screen
 
Normally it says ” false ” under value field , Double click it so it  becomes ” true “.
Once you finished this you should see the following screen.
 Tip No: 4
Tip No: 4
Go to the filter bar again and type 
network.dns.disableIPv6
Once it Opens You should see the following screen
 
Normally it says ” false ” under value field , Double click it so it  becomes ” true “.
Once you finished this you should see the following screen.
 Tip No: 5
 
Tip No: 5
Go to the filter bar again and type 
plugin.expose_full_path
Once it Opens You should see the following screen
 
Normally it says ” false ” under value field , Double click it so it  becomes ” true “.
Once you finished this you should see the following screen.
 Tip NO: 6
Tip NO: 6
Now you need to Create new Preference name with interger value for  this got to Right click -> New -> Integer
 
Once it opens you should see the following screen
 
Here you need to type 
nglayout.initialpaint.delay  and click ok
 
Now you need to enter 0 in value filed and click ok
 
Once you finished this you should see the following screen.
 Tip No: 7
Tip No: 7
Now you need to Create one more Preference name with interger value  for this got to Right click -> New -> Integer
 
Once it opens you should see the following screen
 
Here you need to type 
content.notify.backoffcount  and click ok
 
Now you need to enter 5 in value filed and click ok
 
Once you finished this you should see the following screen.
 Tip No: 8
 
Tip No: 8
Now you need to Create one more Preference name with interger value  for this got to Right click -> New -> Integer
 
Once it opens you should see the following screen
 
Here you need to type ui.submenuDelay and click ok
 
Now you need to enter 0 in value filed and click ok

Once you finished this you should see the following screen.
 Some more Tweaks
 
Some more Tweaks
Enable the spellchecker for inputfields and textareas (default is  textareas only)
layout.spellcheckDefault=2
Open lastfm://-links directly in amarok
network.protocol-handler.app.lastfm=amarok
network.protocol-handler.external.lastfm=true
 
Firefox Memory Leak Fix
Open a new tab. Type “about:config” without quotes into the address  bar and hit enter/click Go. Right-click anywhere, select New, then Integer. In the dialog prompt  that appears, type:
browser.cache.memory.capacity
Click OK. Another dialog prompt will appear. This is where you decide  
how much memory to allocate to Firefox. This depends on how much RAM  
your computer has, but generally you don’t want to allocate too little  
(under 8MB), but if you allocate too much, you might as well not do  
this. A good recommended setting is 16MB. If you want 16MB, enter this  
value into the dialog prompt:
16384
(Why 16384 instead of 16000? Because computers use base-12 counting.  
Thus 16 megabytes = 16384 bytes. Likewise, if you want to double that  
and allocate 32MB, you’d enter 32768.)
Click OK to close the dialog box, then close all instances of Firefox  
and restart. If your Firefox still uses the same amount of memory, give 
 it a few minutes and it should slowly clear up. If that fails, try a  
system reboot.
Now your Firefox will now be 3 - 30 times faster in loading pages.