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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.

Rated 4 out of 5 stars (404)
672,135 users

YouTube High Definition Featured

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.

Rated 5 out of 5 stars (229)
524,966 users

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!

Rated 5 out of 5 stars (79)
338,012 users

Fasterfox Requires Restart

STILL WORKS FLAWLESSLY AS OF 12-5-2016
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!

Rated 4 out of 5 stars (81)
101,804 users

Google™ Translator Featured

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.

Rated 4 out of 5 stars (152)
77,253 users

YouTube Enhancer Plus Requires Restart Featured

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

Rated 5 out of 5 stars (117)
48,104 users

YouTube™ Flash-HTML5 Compatible with Firefox 57+ Featured

Play YouTube™ Videos in Flash or HTML5 Player

Rated 4 out of 5 stars (40)
45,116 users

Enhancer for YouTube™ Compatible with Firefox 57+ Featured

One of the best extensions for YouTube™. All the features you need to make YouTube™ more awesome!

Rated 5 out of 5 stars (77)
40,387 users

Messenger for Google™ Hangouts Compatible with 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!

Rated 4 out of 5 stars (20)
39,101 users

Turbo Download Manager Featured

a download manager with multi-threading support

Rated 4 out of 5 stars (68)
36,922 users

AdBeaver

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.

Rated 4 out of 5 stars (131)
36,712 users

Unblock Youku

Helps users access their web services while travelling outside mainland China.

Rated 4 out of 5 stars (49)
34,510 users

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.

Rated 3 out of 5 stars (46)
31,312 users

YouTube HD Plus

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

Rated 5 out of 5 stars (25)
25,028 users

Web Messenger for WhatsApp™

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

Rated 4 out of 5 stars (8)
22,093 users

Tilt 3D Requires Restart

A WebGL-based 3D visualization of a webpage.

Rated 4 out of 5 stars (41)
19,549 users

Torrent Finder Toolbar Requires Restart

Torrent Finder Toolbar is a torrent search toolbar for Firefox, which enables users to search over 180 top torrent sites and trackers from their Firefox browser the same way they used to search using www.torrent-finder.info form. It allows users...

Rated 3 out of 5 stars (90)
13,983 users

YouTube to MP3 Converter Compatible with 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.

Rated 5 out of 5 stars (60)
13,880 users

YouTube No Buffer (Stop Autoplaying) Featured

A bulletproof approach to prevent YouTube from buffering videos

Rated 4 out of 5 stars (27)
13,634 users

YouTube Anywhere Player

Watch videos anywhere in cinema mode without leaving the website you're on.

Rated 5 out of 5 stars (62)
13,538 users