The table below gives you a list of add-ons for the webbrowser FireFox. The names of the add-ons are linked with the download-page on addons.mozilla.org. The website for the particular add-on (if existent) provides additional information.

I wrote this list in 2007 while using Ubuntu Linux 7.04 (Feisty Fawn).
Table 1. FireFox add-ons.
Name/Download page Homepage Description

Live PageRank

livepr.raketforskning.com

Live PR shows you the Google PageRank of the current URL in the status bar.

Fasterfox

fasterfox.mozdev.org

Shows you the needed loading time for the current URL in the status bar and allows you to tweak many network and rendering settings.

Quick Preference Button

Allows you to change common preferences very quick from a menu button.

Adblock Plus

adblockplus.org

Blocks the display of advertisements on websites.

RefControl

www.stardrifter.org/refcontrol

Control what gets sent as the HTTP Referer.