18 534 047 gebruikers
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).
6 239 103 gebruikers
The easy way to download and convert Web videos from hundreds of YouTube-like sites.
This works also for audio and picture galleries.
502 742 gebruikers
With the Ant.com Video Downloader, you can download video from Youtube or any other streaming site. Rare are the sites you will not be able to download from. We have integrated a flash video player too, so that you can play your files immediately.
2 245 292 gebruikers
The best security you can get in a web browser!
Allow active content to run only from sites you trust, and protect yourself against XSS and Clickjacking attacks.
1 640 581 gebruikers
The first and only download manager/accelerator built inside Firefox!
1 786 655 gebruikers
508 204 gebruikers
339 836 gebruikers
Only one with 1080p Full-HD and 192kbps MP3 Direct Links - 100% clean (no adware/nagware) addon for superfast and easy downloads in FLV,3GP,MP3,MP4,720p, 1080p qualities on Youtube pages.
987 037 gebruikers
Fight the text ads! Element Hiding Helper is a companion extension for Adblock Plus meant to make creating element hiding rules easier.
1 047 045 gebruikers
Never be annoyed by a Flash animation again! Blocks Flash so it won't get in your way, but if you want to see it, just click on...
259 101 gebruikers
LastPass, an award-winning password manager, saves your passwords and gives you secure access from every computer and mobile device.
318 312 gebruikers
This add-on is a downloader that lets you easily download videos and music from sites like Youtube, Facebook, Metacafe, Dailymotion, Break, VKontakte, DivShare and music for example from SoundCloud, Grooveshark and from many other sites...
1 179 860 gebruikers
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.
758 456 gebruikers
The Web Developer extension adds various web developer tools to the browser.