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!
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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.
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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!
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YouTube Musical Spectrum
Audio visualizer for YouTube, YT Music, Spotify, and SoundCloud with musical notes.
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RSS Launchpad: find feeds easy
Lets you find RSS or Atom subscriptions in web pages easily
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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.
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Relingo - Master words from any webpage
Reading based on interest and mastering vocabulary unconsciously
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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!
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Video to Animated GIF
Converts the YouTube, Vimeo, webm, ogv or mp4 videos you are currently watching into an animated GIF.
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Scribble Pad
Scribble Pad lets you draw,sketch,text and annotate directly on any website in real-time, a complete lightweight package.
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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!
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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 👨💻
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Snow for Firefox
Experience a snowstorm effect with falling snow on your page. Transform it into a winter wonderland with snowflakes.
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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.
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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.
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ReDD Focus: Hide Distractions
Open-source attention saver for the web (YouTube, Instagram, ... or any other site!).
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