My current Firefox set up, Greasemonkey scripts: http://tinyurl.com/cdecoye | http://tinyurl.com/4ldkt9 | http://tinyurl.com/33nss4 - stylish: http://tinyurl.com/axcaa9q
Blocks annoying video ads on YouTube, Facebook ads, banners and much more.
Adblock Plus blocks all annoying ads, and supports websites by not blocking unobtrusive ads by default (configurable).
Restyle the web with Stylish, a user styles manager. Stylish lets you easily install themes and skins for Google, Facebook, YouTube, Orkut, and many, many other sites. You can even customize Firefox and other programs themselves.
Tab Mix Plus enhances Firefox's tab browsing capabilities. It includes such features as duplicating tabs, controlling tab focus, tab clicking options, undo closed tabs and windows, plus much more. It also includes a full-featured session manager.
AiOS lets you open various windows as sidebar panels, and quickly switch between them. So it put an end to the window chaos! In addition to bookmarks and history it opens dialogues such as downloads, add-ons and more in the sidebar.
Status bar widgets and progress indicators for Firefox 4+
Make your bookmarks bar better. Roomy Bookmarks Toolbar can: hide bookmarks/folders name, multirow, autohide and many another features(more than 20).
Customize your bookmarks bar using one add-on.
Help make Firefox better. The Add-on Compatibility Reporter enables you to report if the Firefox add-ons that you're using are working properly.
Customize application menus:
Rearrange or remove menuitems from the main context menu (right-click menu) and main menubar (File Edit View etc.)
British English Dictionary R1.19 for Firefox, Thunderbird and SeaMonkey by David Bartlett.
To enable, right-click in a multi-line text box, select "Languages", then "English / United Kingdom".
Displays your current IP address. If you have a static IP (Internet Protocol) address, this number will stay the same each time you visit. If you have a dynamic IP, the number will change each time you log on to the internet (or your ISP assigns a...
Automatically redirects to user-defined urls on certain pages
Collections are groups of related add-ons that anyone can create and share.Explore Collections