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Speed Up Firefox

January 10th, 2005 Leave a comment Go to comments

I was sent an email at work today which told me how to tweak a couple of settings in Mozilla Firefox to speed up page loading times.

Always a little sceptical of such things, I thought that I would try it out, and it does seem to work.

You can dramatically speed up “browsing rendering” speed by turning on request pipelining by doing as follows.

This will not effect downloading of large files in the slightest. What it will do is change how fast a typical “rich web page” – ie a page made up of 20-50 images / bits of text loads and renders by loading the images in parallel rather than one at a time.

1. Type “about:config” into the address bar (no spaces) and hit Return.
Scroll down and look for the following entries:


Normally the browser will make one request at a time to a Web page. When you enable pipelining, the browser will make several at once, which really speeds 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
tells the browser to make 30 requests at once.)

3. Lastly, 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 acting on received information.I thought I would try and see if I could find this information in other places just to verify, and it seems that these tricks are quite old, but never-the-less worth performing.

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