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).
The easy way to download and convert Web videos from hundreds of YouTube-like sites.
The first and only download manager/accelerator built inside Firefox!
Fight the text ads! Element Hiding Helper is a companion extension for Adblock Plus meant to make creating element hiding rules easier.
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.
Remove or manage a new and uncommon kind of cookies, better known as LSO's.The BetterPrivacy safeguard offers various ways to handle Flash-cookies set by Google, YouTube, Ebay and others...
Latest updates: See bottom link 'version history'!
A customizable mouse gestures extension which enables to execute various commands and user scripts with six types of gestures.
Helps you to save web pages and organize the collection. If you are using Firefox 18 or newer, use the beta, which is available on the development channel.
A complete redesign of popular Google services, Google Redesigned changes the appearance of popular Google services.
Add useful extra features to Gmail, like hierarchical labels, an unread message icon on your browser tab, file attachment icons, and more.
Select text and it's automatically copied to the clipboard. Also pastes on middle click.
Note from Mozilla: This add-on has been discontinued. Try MinimizeToTray Revived instead.
Minimize applications to the system tray.
A compilation of some of the best Greasemonkey user scripts for YouTube in one interface.
Collections are groups of related add-ons that anyone can create and share.Explore Collections