Tired of configuring Firefox to it’s best performance?
It’s possible to backup your browser settings and add-on settings and it’s also possible to add new settings just in the preferences file since it’s just a *.js file. That means Javascript.

You can find this file on your harddisk:
XP:

C:\Documents and Settings\<username>\Application Data\Mozilla\Firefox\Profiles\<profile ID>\

Vista:

 \Users\<username>\AppData\Roaming\Mozilla\Firefox\Profiles\<profile ID>.default\

Open the prefs.js file with your favorite dev editor.
From here you can make a backup of this file or add new settings, for example:

user_pref("bidi.support", 0);
user_pref("browser.tabs.tabMaxWidth", 100);
user_pref("browser.tabs.tabMinWidth", 50);
user_pref("layout.word_select.eat_space_to_next_word", false);
user_pref("network.http.max-connections", 96);
user_pref("network.http.pipelining", true);
user_pref("network.http.pipelining.maxrequests", 16);
user_pref("network.http.pipelining.ssl", true);
user_pref("network.http.proxy.pipelining", true);
user_pref("nglayout.initialpaint.delay", 50);

People who know me, know that I am a big fan of Mozilla Firefox.

With these settings you can make Firefox faster:

1. Type in the adressbar: about:config
2. Filter on the word: pipe
3. Change all the boolean values from false to true
4. Change the max request integer from 4 to 8



These configurations were tested for FireFox 2 & 3.

network.http.pipelining = true
network.http.pipelining.maxrequest = 8
network.http.max-connections  = 96
network.http.pipelining.ssl = true
network.http.proxy.pipelining = true