Have a useful add-on for firefox? or a great looking theme? Post it here!

IE Tab - Got a webpage that doesnt load correctly in FF? Use this to use the IE engine:-

https://addons.mozilla.org/en-US/firefox/addon/1419

Colorful Tabs - each tab that is opened is in a diffrent color, unless its from the same webpage.:-

http://varun21.googlepages.com/colorfultabs.xpi

Stumble Upon addon - Bored? this gives you random links based on categories you choose!:-

https://addons.mozilla.org/en-US/firefox/addon/138

3d Tab Switching effect - Gives the “cube effect” when going between tabs
https://addons.mozilla.org/en-US/firefox/addon/4258

Shorcuts on the bar are icons only
https://addons.mozilla.org/firefox/4072/

WOOT watcher, puts a hot link to woot.com on the bottom bar
https://update.mozilla.org/firefox/4458/

FireFTP - A sweet addon that gives a powerfull ftp interface for FF
http://fireftp.mozdev.org/

Speed Dial - Gives you the abiliy to assign bookmarks to hot keys!!!
https://addons.mozilla.org/en-US/firefox/addon/4810

I had already installed these two:
Colorful Tabs - each tab that is opened is in a diffrent color, unless its from the same webpage.
FireFTP - A sweet addon that gives a powerfull ftp interface for FF

I’m interested in this one:
3d Tab Switching effect - Gives the “cube effect” when going between tabs
https://addons.mozilla.org/en-US/firefox/addon/4258

Anyway you can find all firefox official add ons here: https://addons.mozilla.org/en-US/firefox/

Great list, I love ReloadEvery, it “reloads web pages every so many seconds or minutes. The function is accessible via the context menu (menu you get when you right click on a web page) or via a drop down menu on the reload button.” It’s super handy and saves my finger rest at times. :lol:

https://addons.mozilla.org/en-US/firefox/addon/115

Adblock Plus - Custom filters for removing ads and privacy invaders

Chatzilla - The simplest IRC client built-in to Firefox.

_Foxmarks - Bookmarks synchronizer across multiple computers. Easy and secure!

_Video DownloadHelper - Help download embedded videos and other files you clicked on

_Evernote Web Clipper - Browser integration with Evernote

_OpenDownload - Be able to “run” .exe straight out of the browser without saving.

Right-Click Link - Open any link by right clicking and selecting to open. Works for all links with a protocol in front (HTTP, IRC, etc)

_Update Scanner - Check and monitor for changes in websites. Useful if no RSS feeds are available.

_Nightly Tester Tools  - Excellent set of tools to test builds and betas of Firefox. Includes addon version compatibility override and immediate addon installation.

MR Tech Local Install - The must have complement of Nightly Tester Tools. Adds all sorts of customization options in about:config and restart option.

Edit: Why aren’t some working and others not??! They’re the exact duplicates!!

Being an Opera user i only envy FF users for 2 things.StumbleUpon and Firebug,an similar developer tool called Dragonfly is being developed and is in alpha for Opera though.