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YouTube™ Video and Audio Downloader

Downloads YouTube videos in all available formats (FLV, MP4, WebM, and 3GP) with video quality of your choice. It also contains a pure JavaScript library to extract the ORIGINAL audio file embedded in video files.

Waardering 4 van 5 sterren (410)
679.087 gebruikers

YouTube High Definition Aanbevolen

YouTube High Definition is a powerful tool that will let you automatically play all YouTube videos in HD (High Definition), turn off annotations, change video player size, auto stop videos, auto mute videos, control embedded videos and much more.

Waardering 5 van 5 sterren (232)
496.925 gebruikers

YouTube Flash Player

A very lightweight add-on that allows you to watch YouTube™ videos using Flash® Player instead of the default HTML5 player. The Flash® Player will consume less material resources (CPU, RAM) if your PC doesn't easily support HTML5 videos. Try it!

Waardering 5 van 5 sterren (83)
333.504 gebruikers

Fasterfox Vereist herstart

The One; The Original Fasterfox Gives performance & network tweaks for Firefox. Fasterfox makes your browsing so much faster!
Make your Sites Faster than a Fox with Fasterfox for FireFox!

Waardering 4 van 5 sterren (81)
103.080 gebruikers

Google™ Translator Aanbevolen

Google™ Translator is a handy multi-language translator built on top of Google Translate. It gives you Google Translate UI feel right on your Firefox toolbar.

Waardering 4 van 5 sterren (152)
76.146 gebruikers

Enhancer for YouTube™ Compatibel met Firefox 57+ Aanbevolen

Tons of features to improve your user experience on YouTube™.

Waardering 5 van 5 sterren (89)
45.644 gebruikers

YouTube Enhancer Plus Vereist herstart Aanbevolen

Improve your watching experience! Ad Blocker, Autoplay Manager, Auto HD, Auto Replay, Cinema Mode, and more.

Waardering 5 van 5 sterren (115)
44.924 gebruikers

YouTube™ Flash-HTML5 Compatibel met Firefox 57+ Aanbevolen

Play YouTube™ Videos in Flash or HTML5 Player

Waardering 4 van 5 sterren (43)
43.815 gebruikers

Messenger for Google™ Hangouts Compatibel met Firefox 57+

Easily connect with friends and family while you browse internet. This add-on brings conversations to life with photos, emoji, and even group video calls!

Waardering 4 van 5 sterren (21)
39.638 gebruikers

Turbo Download Manager Aanbevolen

a download manager with multi-threading support

Waardering 4 van 5 sterren (84)
37.172 gebruikers


AdBeaver is a free service for you to get a little more out of your web surfing. You surf the web and earn valuable AdCoins for every ad shown on your screen. AdCoins can be cashed out via paypal, gift cards or donated to a charitable cause.

Waardering 4 van 5 sterren (131)
36.895 gebruikers

Unblock Youku


Waardering 4 van 5 sterren (49)
33.548 gebruikers

YouTube Video Downloader - For Context Menu

Right click YouTube video links on any websites, download it from context menu. Multi formats(mp4 flv 3gp), easy to use and fast to response.

Waardering 3 van 5 sterren (65)
31.107 gebruikers

YouTube HD Plus

Automatically play YouTube™ videos in HD or any other preferred format, and disable autoplay for videos loaded in background tabs.

Waardering 5 van 5 sterren (26)
24.197 gebruikers

Web Messenger for WhatsApp™

Web Messenger for WhatsApp™ brings web messenger right into your browser to chat with your friends.

Waardering 5 van 5 sterren (7)
21.377 gebruikers

Tilt 3D Vereist herstart

A WebGL-based 3D visualization of a webpage.

Waardering 4 van 5 sterren (41)
20.143 gebruikers

YouTube to MP3 Converter Compatibel met Firefox 57+

YouTube to MP3 Converter and also YouTube to MP4, M4A and WEBM Downloader.
YouTube MP3 provides Audio MP3 up to 320 kbps, M4A up to 128kbps, Video MP4 and WEBM up to Maximum Available. Highest Download Quality Available. No Limits. Fast Download.

Waardering 4 van 5 sterren (74)
14.236 gebruikers

Time Restart

Allows you to specify the time to restart browser.

Waardering 5 van 5 sterren (18)
13.348 gebruikers

Torrent Finder Toolbar Vereist herstart

Please download the new toolbar at https://addons.mozilla.org/en-US/firefox/addon/aio-search-toolbar/

Waardering 3 van 5 sterren (92)
13.218 gebruikers

IMDB Search Vereist herstart

Select some text, right-click and choose "IMDB Search" in the menu, a new tab will open with the searched text.

Waardering 4 van 5 sterren (16)
12.906 gebruikers