Speed Up Firefox web browser

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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.

I am providing 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

Tip1

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.

Tip2

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.

Tip3

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.

Tip4

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.

Tip5

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.

Tip6

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.

Tip7

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.

Tip8

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

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.

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240 thoughts on “Speed Up Firefox web browser

  1. dont use the browser.cache.memory.capacity tip. it really slows down firefox (at least on version 3.6) if you have multiple tabs open and are trying to browse images, 75% of the time firefox will just hang with the loading circle spinning, and never do anything.

    [Reply]

  2. i changed my MTU in network properties. that made a big diff.

    [Reply]

    PhillipS Reply:

    Where do I change it and to what setting?
    I have Wireless and Copper connections.
    Thank you very much.

    [Reply]

  3. I used all the tips provided above with FF6, including the browser.cache.memory and it made a world of difference. I was just about to give up on Firefox because of the speed. Thanks for the tips.

    [Reply]

  4. I just discovered this page – it looks very useful and very clearly laid out.

    But I’m running FF7 on Ubuntu 11.04 and this page is dated January 2007. Are these tips still valid?

    [Reply]

    admin Reply:

    Yes it is

    [Reply]

  5. It doesnt say where,what or how to do the bit titled “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

    ——————————————-
    Could u please let me know how to do this bit and if its important to the desired effect of the process!!!

    Thankyou.

    [Reply]

  6. Robbie says

    It doesnt say where,what or how to do the bit titled “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

    Installed Ubuntu 11.10 for the very first time 2 days ago. Love middle button pasting!

    layout.spellcheckDefault=2
    *Assign a new preference layout.spellcheckDefault as an integer and give it the value 2

    network.protocol-handler.app.lastfm=amarok
    *Assign a new preference network.protocol-handler.app.lastfm as a string and give it the value amarok

    network.protocol-handler.external.lastfm=true
    *Assign a new preference network.protocol-handler.external.lastfm as a boolean and give it the value true

    [Reply]

  7. Why does FF ship with default paramaters which make it slow??

    It would be nice to have some explanantion of why each of the tips makes FF faster.

    [Reply]

  8. Hi! I have Ubuntu 12.10 and when I type about:config instead of filter it says search I guess it’s not a problem. By the way, doesn’t changing the default configuration affect the FF security settings?

    [Reply]

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