Firefox is in my opinion the best browser ever made until now. It includes:
-improved tabbed browsing
-pop up blocking
-integrated Goggle search
-enhanced privacy controls
-built-in phishing protection
-online spell checking
-lots of themes, interfaces, and extensions/addons

Mozilla Firefox officially supports:
-Microsoft Windows
-Linux
-Mac OS X

Unofficial Support:
-Free BSD
-OS/2
-Solaris
-SkyOS
-BeOS
-XP Professional x64 Edition

Now here are some Tips&Tricks that can help you double the speed of Firefox.

1. Type about:config in the address bar and then press Enter.

2. In the filter search bar type network.http.pipelining. Be sure the value field is set true,if not double-click to set true.

HTTP is the application-layer protocol that most web pages are transferred with. In HTTP 1.1, multiple requests can be sent before any responses are received. This is known as pipelining. Pipelining reduces page loading times, but not all servers support it.

3. Go back to the filter search bar and type network.http.pipelining.maxrequests. Double-click this option and set its value to 8.

4. In the filter search bar and type network.http.proxy.pipelining. Once opened double-click on it and set it to true.


5.
In IPv6-capable DNS servers, an IPv4 address may be returned when an IPv6 address is requested. It is possible for Mozilla to recover from this misinformation, but a significant delay is introduced.
Type network.dns.disableIPv6 in the filter search bar and set this option to true by double clicking on it.

6. CONTENT INTERRUPT PARSING
This preference controls if the application will interrupt parsing a page to respond to UI events. It does not exist by default.
Right-click (Apple users ctrl-click) anywhere in the about:config window, select New and then Boolean from the pop-up menu. Then:

A. Enter content.interrupt.parsing in the New boolean value pop-up window and click OK

B. When prompted to choose the value for the new boolean, select true and click OK.

7. Rather than wait until a page has completely downloaded to display it to the user, Mozilla applications will regularly render what has been received to that point. This option controls the maximum amount of time the application will be unresponsive while rendering pages.

Right-click (Apple users ctrl-click) anywhere in the about:config window, select New and then Integer from the pop-up menu.

A. Enter content.max.tokenizing.time in the New integer value pop-up window and click OK

B. You will be prompted to enter a value. Enter 2250000 and click OK.

8. CONTENT NOTIFY INTERVAL

This option sets the minimum amount of time to wait between reflows. Right-click (Apple users ctrl-click) anywhere in the about:config window, select New and then Integer from the pop-up menu.

A. Type content.notify.interval in the New integer value pop-up window and click OK.

B. You will be prompted to enter a value. Enter 750000 and click OK.

9. CONTENT NOTIFY ONTIMER

A. This option sets if to reflow pages at an interval any higher than that specified by content.notify.interval. Right-click (Apple users ctrl-click) anywhere in the about:config window and select New and then Boolean from the pop-up menu.

B. Type content.notify.ontimer in the New boolean value pop-up window and click OK.

C. You will be prompted to choose the value for the new boolean. Select true and click OK.

10. Notify Backoffcount
This option controls the maximum number of times the content will do timer-based reflows. After this number has been reached, the page will only reflow once it is finished downloading. Right-click (Apple users ctrl-click) anywhere in the about:config window and select New and then Integer from the pop-up menu.

A. Enter content.notify.backoffcount in the New integer value pop-up window and click OK.

B. You will be prompted to enter a value. Enter 5 and click OK.

11. CONTENT SWITCH THRESHOLD
You can interact with a loading page when content.interrupt.parsing is set to true. When a page is loading, the application has two modes: a high frequency interrupt mode and a low frequency interrupt mode. The first one interrupts the parser more frequently to allow for greater UI responsiveness during page load.

The low frequency interrupt mode interrupts the parser less frequently to allow for quicker page load. The application enters high frequency interrupt mode when you move the mouse or type on the keyboard and switch back to low frequency mode when you had no activity for a certain amount of time. This preference controls that amount of time. Right-click (Apple users ctrl-click) anywhere in the about:config window and select New and then Integer from the pop-up menu.

A. Enter content.switch.threshold in the New integer value pop-up window and click OK.

B. You will be prompted to enter a value. Enter 750000 and click OK.


12. NGLAYOUT INITIALPAINT DELAY

Mozilla applications render web pages incrementally, they display what’s been received of a page before the entire page has been downloaded. Since the start of a web page normally doesn’t have much useful information to display, Mozilla applications will wait a short interval before first rendering a page. This preference controls that interval. Right-click (Apple users ctrl-click) anywhere in the about:config window and select New and then Integer from the pop-up menu.

A. Enter nglayout.initialpaint.delay in the New integer value pop-up window and click OK.

B. You will be prompted to enter a value. Enter 0 and click OK.

Thanks ubuntugeek.com

144 Comments

  1. SAM says:

    BEST speed thankx

  2. Knez says:

    It is impressive how much faster my browsing is now, will it work for windows 98, have an older computer also for my children has 98 windows. If so please let me know.

    Thank You!!!

  3. sLOW DONWn says:

    Awesome !!

    Works like a charm !!

    My page browsing incremented and loading time speeds… much better !!

    Thank you very much for this Great tip.

    In my sons computer I applied this fix and it speeds up his INTERNET experience a LOT, and he got a slow computer for the time now.
    it’s an Intel P III and 512 MB Ram so…. :)

    Good Job JASON O.P.!!

    very appreciated.

    Cheers!!

  4. Marky5000 says:

    Unreal, totally unreal,
    THANK YOU FROM THE BOTTOM
    OF MY IMPATIENT HEART!!!!!
    :)

  5. Somebody says:

    Why didn’t Mozilla built firefox with those tweaks?

  6. aditya says:

    i accidently entered new entry of string …..
    i want to know how to delete that entry

  7. cris says:

    how can i restore the settings in “abou:config” all of this tips didnt work for me and my downlaod speed slows a bit helpp !! email me the answer pls..blitzkid_cris@yahoo.com

  8. vegeta says:

    it works! i can feel the speed boost! thanks for this.

  9. Paul says:

    I have never done anything like this before and followed the instructions and I cannot believe how fast it is now. Double the speed? Mine is more like triple, no exaggeration. Many thanks. I am doing it to all my computers.

  10. Paul says:

    To add, I was so frustrated how slow my browser was (I checked everything and tried different browsers and I use the internet at a fast pace for work, nothing worked). I have never done anything like this before and followed the instructions which were clear and I cannot believe how fast it is now. Double the speed? Mine is much more like ten times the speed as before, no exaggeration. Many thanks. I am doing it to all my computers. You made my working day a lot easier.

  11. djdh says:

    WOW!!! I’m running firefox on a 38 gigabyte hard drive in a computer made in 2000 with slow dial-up internet from a cell phone and my yahoo mail just loaded in less than a second… WOW!!! THX so much

  12. BPm says:

    i did all that and restarted the firefox. now idk if its going faster or not lol. but loading youtube vids is still abit slow. is that normal?
    thanks though. i like your tips

  13. jon says:

    it is really works.. thanks lots

  14. Kevin Oakes says:

    I just completed the steps above and i am totally amazed at how much faster my computer is, I am running fire fox 3.5, It’s like as soon as I touch the enter button my page is there, totally awesome, I will recommend your site to all my friends….Thanks Guys, Great Work

  15. Will says:

    does this work for Firefox 3.5 as well? Just wondering as I don’t want to mess anything up, considering they did change a few things for it.

  16. [...] – How to Double Firefox Speed, [...]

  17. crimz says:

    about:config still works in FF 3.5, and will continue to be there in any and all FF iterations, wether the specific entries are there is a totally different matter, but if one is not there I would recommend simply skipping it. you can really fuck FF up messing around with the about:config if you do something wrong

  18. Brad says:

    I just tried this in FF2, FF31, Chrome and FF35 and it works perfectly in all of them!

  19. TOOOOO Much!!! says:

    Amazing this has really reduced the time for a page to load!! was hesitant to add the new setting , but glad i did them , thanks again!

  20. ccccccccc says:

    it made my speed go lower!

  21. ai says:

    is downloading included here? it stays the same :(

  22. Mo3taz says:

    great work my Firefox get very fast

  23. supzz says:

    i cant save these settings..some values changed to diff 1 when go back 2 the page

  24. ragukulan says:

    it’s very usefull..

    make my firefox lightning speed..

    is there any disadvantage after make this tip’s

  25. Allen says:

    It makes my Firefox slower. Maybe because these were for older firefox’s. Were now in 2010 and have Firefox 3.6.3.

  26. Anuroop Gambhir says:

    it was a nice topic first i entered wrong information and it was taking 1/2 hour to load a page then i made it all right now i am happy thanks for it .

  27. Erling says:

    Type about:config. Clik on the little arrow far right, and choose, regenerate natrual order, and your Firefox will run at its best ;-) and fast.

  28. Michael says:

    Not sure about double speed but it certainly sped up =), I now don’t get any annoying pauses whilst watching youtube videos either. Thanks =)

  29. Mike says:

    My address bar disappeared!

  30. sherry says:

    This is great! Suggestion: next time, for those of us who tremble at this sort of thing, tell your readers how to exit auto.config. Yes, yes – it’s simple to you, but I was terrified!

    Sure has improved my firefox. Now I’ll search for the same thing for XP/TBird 3.0.6, which is dreadful.

  31. Jeff says:

    my firefox is not starting..

  32. Balaji says:

    This tweak is not working for me. It makes my browser faster to slower.
    Now I uninstall my Firefox 3.6 and reinstall the new Firefox 3.6.8 . Really thanks for your tips.

  33. mahmoud says:

    I did not feel any difference

  34. [...] 16, 2010 content.switch.threshold via pctipsbox.com Posted by dmoraschi Filed in Uncategorized Leave a Comment [...]

  35. vicky says:

    It makes my browser faster to slower. can u help me?

  36. fatima says:

    really great work,my browser get double faster
    thank you alot for your advise

  37. alan says:

    I keep seeing the same old FF tweaks over and over but whats rare to find is one of the best tweaks yet.

    That is to make Firefoxes Cache to run in Ram!
    Most of the faster computers have plenty of ram to spare and you don’t need much!
    Just watch how fast you can shut down FF and restart it… 2 – 3 seconds if you have an SSD drive! It doesn’t have to wait to deleter files off of a slow hardrive but just dumps it from ram instead.

    Here’s how to do it.. you won’t regret it!

    ****Firefox – Use memory cache instead of disk cache.

    Description: If you use Firefox, there’s a way to write cached files to RAM instead of the hard disk. This is not only faster, but will significantly

    reduce writes to the SSD while using the browser.

    Instructions: Open Firefox -> Type about:config into the address bar “or filters bar” -> Enter -> now you will see the filter bar to enter searches

    into….find and double-click on “browser.cache.disk.enable” to set the value to False,
    Note, if you simply copy and paste or type “browser.cache.disk.enable”, it will find it for you ->
    Right-Click anywhere on the blank screen -> Pick “New” -> Integer -> Preference Name “disk.cache.memory.capacity” -> value memory size in KB. Enter 32768 for 32MB, 65536 for 64MB, 131072 for 128MB,

    etc. I use the highest setting of “131072″ -> restart Firefox

    To confirm you can also go to the address bar enter “about:cache”, now verify that your changes reflected in cache-directory name (Look for Cache Directory) If you chose to use RAM you will see no directory pathway.

  38. dinkar says:

    yes really it works awasome….its a awasome job

  39. prabhakaran says:

    hey geart jop frd!…

  40. kanth says:

    well its a good and working trick .its really helpful for the users who r using dial up connection .and once again thanks for the one who wrote this tip ..

    everyone hv to try tis .its really working

  41. marni says:

    Features are nice. I’m an eye candy and features slut too. But
    i think there are only two important features, neither being talked about,
    so i think i’m already disappointed in FF4…
    1] power use – FireFox is a power pig.
    2] speed. Faster page loads will be nice but download speed is the real crunch
    [Firedownload add-on works only on single files, and Downthemall isn’t fast.
    So, so far, i’m not impressed.

  42. Nikiboy says:

    Thankyou very much for your tips !

  43. shivani says:

    its really works but….
    when i open my skype messenger….
    firefox starts not responding……
    plz tell me what should i do

  44. ajay says:

    Thanksssss ! dudeeeeeeeee

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