NoScript
Winner of the "2006 PC World World Class Award", this tool provides extra protection to your Firefox.
It allows JavaScript, Java and other executable content to run only from trusted domains of your choice, e.g. your home-banking web site.
Such a preemptive approach prevents exploitation of security vulnerabilities (known and even unknown!) with no loss of functionality...
Experts do agree: Firefox is really safer with NoScript ;-)
https://addons.mozilla.org/firefox/722
FFXI Finder
:biggrin1:
A toolbar for quickly finding items, quests, mobs, npcs, recipes, auctions or maps in
Final Fantasy XI. You can search using Somepage.com, Allakhazam.com, or input any custom site you want
https://addons.mozilla.org/firefox/3081
Gspace
This extension allows you to use your Gmail Space (2.8 GB and growing) for file storage. It acts as an online drive, so you can upload files from your hard drive and access them from every Internet capable system. The interface will make your Gmail account look like a FTP host.
After the installation, you'll get an option called "Gspace" in your "Tools" menu, which opens the GSpace window.
https://addons.mozilla.org/firefox/1593