Mozilla Firefox is currently the most popular web browser used to surf the internet. Another one, the Google Chrome is also becoming popular mainly because of its speed and the developers are also bringing up the most essential and useful add-ons for it.
Update : These tweaks also works on the latest Firefox versions that is Firefox 4 and above also.

In this article, we are dealing with the ways to speed up Firefox 3.6 version. I have tested all of these ways and have made sure that these will work on the 3.6 version of Firefox. Most of them might also be available in the forth coming versions of Firefox. Here are my suggestions to speed up Firefox browser.
about:config Hacks
1. Type about:config in the address bar and hit enter.
2. Click on I’ll be careful, I promise!. Don’t just say that and do wrong! You should be careful.
3. Now in the Filter box, type the ones given below one by one along with changing the value of each one to true.
NOTE: To change the value, just double-click on the required one.
network.http.pipelining
network.http.proxy.pipelining
network.dns.disableIPv6
plugin.expose_full_path
javascript.options.jit.chrome
javascript.options.jit.content
4. Now type network.http.pipelining.maxrequests in the filter box and change its value to the number of tabs you open in Firefox at a time. For example, if you usually open 10 tabs, then put its value to 10. Just double-click on it to change the value.
5. Now right-click anywhere on the about:config page and select select Integer from the New option. Type content.notify.backoffcount and click on OK. Now set it its value to 5.
NOTE: Mac users could use Ctrl + click instead of right-click.
6. Again right-click anywhere on the page and select Boolean from New. Type content.notify.ontimer in the box and set its value to true.
7. Right-click and select Integer from New and enter content.notify.interval as the preference name and give its value to 500000. It speeds up web page loading.
8. Select another Integer and give the name as content.switch.threshold and set the value to 250000. This is also done to speed up the loading time of web pages.
9. Create another Boolean named content.interrupt.parsing and set its value to true.
10. Select Integer from New once again and give the preference name as content.max.tokenizing.time and set its value to 2250000.
Add-ons to speed up Firefox 3.6
Using add-ons like Fasterfox could speed up your Firefox browser. Some other add-ons that could help you speed up your Firefox 3.6 browser are FastFox ( same as Fasterfox ), FireDownload ( Speed up Firefox downloads ), Extra Fasterfox ( same as Fasterfox ), Vaccum Places ( speed up Firefox 3.6 start up ), Speed DNS ( Make browsing faster ), Tweak Network ( Speed up web page loading ) etc. You could also block the advertisements in web pages using Adblock Plus add-on to speed up web page loading in Firefox 3.6. Search for many more add-ons and try them to speed up your Firefox 3.6 browser.
I am sure doing all these or some of these correctly could make your Firefox 3.6 faster than before and run it smoothly. Of course, there are more ways to speed up Firefox 3.6, so if you know more, please do share them by commenting below.
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9 Comments
C400 firefox hack settings by zoovido:
type “about:config” in the address bar of your firefox
nglayout.initialpaint.delay = 0 integer
content.notify.interval = 500000
content.notify.ontimer = true Boolean value
content.max.tokenizing.time = 1500000
(default value: triple the value ofcontent.notify.interval)
content.interrupt.parsing = true
content.switch.threshold = 500000 integer (default:750000)
content.maxtextrun : 8191
content.notify.backoffcount : 5
browser.search.openintab = true Boolean value
layout.word_select.eat_space_to_next_word = false Boolean value
network.http.max-connections = 48 integer (default:30)
network.http.max-connections-per-server = 16 integer (default:15)
network.http.max-persistent-connections-per-server = 8 integer (default:6)
network.http.request.max-start-delay = 0 integer (default:10)
network.http.pipelining = true Boolean value (default:false)
network.http.pipelining.maxrequests = 8 integer (default:4)
network.prefetch-next = false Boolean value (default:true)
browser.cache.memory.enable = true Boolean value
browser.cache.memory.capacity = 1 GB RAM – 18432
2 GB RAM – 24576
4 GB RAM – 30720
browser.sessionhistory.max_entries = 5 (default:50)
browser.sessionhistory.max_total_viewers = 0 (zero) to disable session history.
This will reduce your Ram consumption by a 50%.
(default:-1)
config.trim_on_minimize = true Boolean value
signed.applets.codebase_principal_support : true (default:false)
plugin.expose_full_path : true (default:false)
ui.submenuDelay = 0 (zero)
optional:
network.http.keep-alive = true (it is the default value)
network.http.keep-alive.timeout = 600 (default: 115 on XP)
network.dnsCacheExpiration = 3600
network.dnsCacheEntries = 1000
restart your firefox and feel the speed faster than a speeding bullet…
Useful idea but normal user find it troublesome, Isn’t it possible to make a single 1 click update file.
Really Great! Really Works! REALLY Grateful! Thank!
thanks guys for the very nice tweaks,,it significantly speed up firefox like a bullet..thanks again.please continue to share us your knowledge..
Removing all themes from your system is also a good idea! DO IT NOW!
just try it.. awesome!!!!!!!!!!! thnx for the tips :)
Thanks for these great tips. Works like a charm!
Thanks for the info guys also put your Firefox on a RamDisk
I use DataRam its free….up to 4gb
Hi
Thanks for the tips. My Firefox Beta 4 is really fast now.