How to speed up Mozilla Firefox 3-30x

January 23, 2008 at 2:48 pm (Firefox) (, , , , )

1. Type “about:config” into the address bar and hit return. Look for the following entries:


Normally the browser will make one request to a web page at a time. When you enable pipelining it will make several at once, which reallyspeeds 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 30. This means it will make 30 requests at once.

3. Right-click anywhere and select New-> Integer.
Name it “nglayout.initialpaint.delay” and set its value to “0”.
This value is the amount of time the browser waits before it acts on information it recieves.



  1. Faz said,

    hmm… OK

  2. sep said,

    speeds it up, thanks for the guide

  3. eason said,

    i tried ur ways but.. the loading is still slow.. sometimes taking a long long time to load pages…

  4. danny said,

    thanks really helped out
    oh and commenters you should be grateful ppl take the time to help the new geeks lol

  5. xdman said,

    works only slightly

  6. rodski said,

    yes this guide really speed up Firefox 3,thanks for the guide

  7. Fede-lasse said,

    I really think it depends on the kind of pages you guys are loading =P

    Anyway, this also helped me. I never really noticed if it actually was faster, but it’s just in case! What I do, is turning the internet connection power use to “Maximum Power Saving” and then do this in FF3. I’m hoping it would be an identical experience because of the downsides and tune-ups, hehe.

    Don’t take my word for it, though! I’m not THAT geeky on computers. I’m just a programmer.

  8. Fede-lasse said,

    Also, some of you may call it slow… Well, remember to restart FF! Maybe that’s the reason you didn’t notice any difference.

  9. Ruud said,

    In Firefox 3, the maximum value of network.http.pipelining.maxrequests is 8. Setting it higher is meaningless… See here:

  10. metasx said,


    Set it to between 1 – 8, Firefox doesn’t do more then 8, and besides it actually will slow down if it could.

  11. FireFox go slow on 11.1 - openSUSE Forums said,

    […] How to speed up Mozilla Firefox 3-30x TechniX I applied the above, found a speed improvement, although I still find firefox2 faster than firefox3. However IMHO firefox3’s improved features make the slight speed slow down (with firefox3) more than worth the upgrade from firefox2. […]

  12. theone said,

    it works for me. tnx…

  13. Rohinton said,

    its ok .. ne thin more ..

  14. Yogesh said,

    That works good

  15. Anonymous said,


  16. fff said,


  17. dm said,

    >>Set “network.http.pipelining.maxrequests” to some number like 30. This means it will make 30 requests at once.

    Mozilla doesn’t allow values >8

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