Search by Image
A powerful reverse image search tool, with support for various search engines, such as Google, Bing, Yandex, Baidu and TinEye.
336,244 users
Video Background Play Fix
Some sites may not work with Firefox for Android video background play feature. This add-on provides a quick fix by blocking the Page Visibility API and the Fullscreen API.
144,366 users
YouTube High Definition
YouTube High Definition is a powerful tool that automatically plays all YouTube videos in HD, changes video player size, offers auto-stop and mute, and much more.
138,843 users
Unhook: Remove YouTube Recommended Videos Comments
Hide YouTube related videos, comments, video suggestions wall, homepage recommendations, trending tab, and other distractions.
77,200 users
Imagus
With a simple mouse-over you can enlarge images and display images/videos from links.
60,510 users
SoundFixer
Helps you fix annoying sound problems on sites like YouTube: audio in one channel only, too quiet or too loud. (Unfortunately, this extension does not work on all websites because of cross-domain issues — but it does work on YouTube!)
53,045 users
Turn Off the Lights for Firefox
The entire page will be fading to dark, so you can watch the videos as if you were in the cinema. Works for YouTube and Beyond. Dark mode for all websites. It works for all known video sites such as YouTube, Vimeo, Twitch, Dailymotion, Facebook, etc.
42,167 users
'Improve YouTube!' 🎧 (For YouTube & Video)
Youtube Extension. Powerful but lightweight. Enrich your Youtube & content selection. Make YouTube tidy&smart! Layout Filters Shortcuts Adblocker Playlist
40,380 users
Worldwide Radio
Listen to live radio stations from around the world!
37,376 users
Ruffle - Flash Emulator
Putting Flash back on the web. Designed to be easy to use, this extension will seamlessly enable you to play flash content, with no extra configuration required!
51,464 users
Flash Player 2022
Play Flash anytime, even in 2022 and beyond, using an emulator. Want to fix "Adobe Flash Player is blocked" messages? This extension will remove those messages and allow you to play Flash in any website with a single click.
37,250 users
Youtube Audio
Stream just the audio from YouTube to save bandwidth and battery life
28,624 users
Hide Youtube-Shorts
Hides YouTube-shorts videos from home page, subscriptions, search results.
24,541 users
BlockTube
YouTube™ Content Blocker Block channels and videos from YouTube™ Fast and easy
20,173 users
Metastream Remote
Watch streaming media with friends.
17,032 users
YouTube Downloader (UDL Helper)
Download YouTube / Instagram / Odnoklassniki videos and extract audio from video with just a few mouse clicks. Supported media formats are MP3, MP4, WEBM. Capture frames from online videos with a screenshot button.
16,680 users
Instagram Downloader
Help users download images and videos easily on Instagram
16,019 users
Media Helper for Instagram
Easily download Instagram pictures and videos.
14,630 users
UltraWideo
The cross-browser extension that manipulates video aspect ratio to fit your entire screen. Take control over cinematic black bars. Netflix | Prime Video | Disney+ | Hulu | ESPN | + Many others...
11,327 users
Telegram
Telegram Web
9,601 users
Disable HTML5 Autoplay
Disable autoplay and preloading of HTML5 video and audio players.
9,020 users
enhanced-h264ify
Choose what video codec YouTube should play for you
7,813 users
Save Screenshot
Saves the current page as image file or copies it to clipboard.
7,441 users
猫抓(cat-catch)
Web media sniffing tool
6,771 users
AdBlocker for YouTube™ Video
removes all sorts of advertisement and banners from YouTube
6,592 users