Vidoo
Change the speed of medias, adjust video filters, skip Ads automatically, flip videos horizontally or vertically, rotate, etc. Adjustable filter parameters: brightness, contrast, saturation, etc.
318 users
YouTube Download Master
YouTube Video Download Master lets you download YouTube videos in resolutions up to 8K or convert them to audio—completely free and without any subscription. Enjoy unlimited video and audio downloads with just one click!
315 users
Quick YouTube Downloader
Quick YouTube Downloader lets you download YouTube videos in up to 8K resolution or convert them to audio—entirely free and with no subscription. Enjoy unlimited video and audio downloads with just one click!
257 users
YouTube Musical Spectrum
Audio visualizer for YouTube, YT Music, Spotify, and SoundCloud with musical notes.
252 users
Video Speed Controller
Easily control HTML5 video playback speed on any website, with an intuitive interface and features tailored to both desktop and mobile versions of Firefox.
247 users
YouTube Downloader
Download videos from 1000+ sites in 4K! Supports MP4, WebM, MP3, FLAC & more. Multi-language, dubbed YouTube, playlists, batch downloads & all audio bitrates — server-powered, zero device load. One click, any device!
210 users
Relingo - Master words from any webpage
Reading based on interest and mastering vocabulary unconsciously
166 users
Free YouTube Video Saver
Effortlessly download your favorite YouTube videos in stunning quality with just one click. Build your personal video library, enjoy seamless offline viewing, and share the best moments with friends—anytime, anywhere!
166 users
Scribble Pad
Scribble Pad lets you draw,sketch,text and annotate directly on any website in real-time, a complete lightweight package.
159 users
Video to Animated GIF
Converts the YouTube, Vimeo, webm, ogv or mp4 videos you are currently watching into an animated GIF.
152 users
YouTube Subs & Playlists Saver
Export YouTube subscriptions and playlists to CSV/JSON/TXT. Privacy-focused, 100% local processing—no data collection. Perfect for backups and importing to NewPipe, Tubular and other YouTube frontend apps. Free and open-source.
127 users
Volume booster
Boost any tab to 500% or mute solo—no spill to other audio. 10-band EQ. Volume & sound per site for YouTube, music, streams & calls.
117 users
Tube Saver
Effortlessly download your favorite YouTube videos in high quality with a single click. Build your personal video library, enjoy offline viewing, and share with friends—anytime, anywhere!
117 users
Big Search
Handily use / switch search engines via a Flexible Tool. With some special technical features also. Definitly more than a GET/POST sender. Source code on Github. Vast search, search great! Breadth 🗺️ & Focus 👨💻
111 users
Snow for Firefox
Experience a snowstorm effect with falling snow on your page. Transform it into a winter wonderland with snowflakes.
111 users
ProBlocker - Adblock for YouTube & Web
Fast, free adblock for YouTube™ and all sites. Block video ads, popups, banners and trackers.
92 users
