Full Page Screenshotter
Capture full-page screenshots in Firefox, including scrolling and app-style pages. Fast, local, private — no tracking or uploads.
949 users
Mirror Video X
Allows you to mirror or rotate a video within the web page, services such as YouTube and Twitch are supported, but it works on the majority of sites. Customizable keyboard shortcuts and user-friendly interface.
946 users
ReelSleek - Video Control for Instagram
ReelSleek adds persistent volume, precision seeking, and smart mute controls to Instagram on Firefox — lightweight, private, and built for power users.
940 users
SpoPlus - Edit Spotify Theme & Settings
2026 • Spotify extension that allows you to bring back classic heart button, set up new themes, fonts, remove annoying notifications, popups, and many more!
939 users
Debug CSS
Adds outline to all elements on the page to show the culprit element which is changing desired layout hit `Alt+Shift+C ` key to toggle the extension
936 users
Auto hide next up card for Amazon Prime Video
Hides next up card and other obtrusive elements of Amazon Prime Video.
928 users
The Snake Game
Play the Snake game in popup in your browser. Eat, grow and try not to crash.
919 users
Reddit Comment Collapser
A more elegant solution for collapsing reddit comment trees. Reddit Comment Collapser is free and open source. Contributions welcome - https://github.com/tom-james-watson/reddit-comment-collapser
917 users
Save to Trello
This firefox extension allows you to Create a Trello card from any webpage (including Gmail/webmail) / Ideal for Inbox Zero. You can save the current page to Trello. When you find something in Firefox that you want to view later put it in Trello.
916 users
Toggle dark mode
Toggle the content’s color scheme between preferring light or dark (or inheriting)
916 users
Sakuga Extended
Enjoy a better experience with SAKUGABOORU! Previews on posts, frame control on videos...
908 users
YouTubeUtils
Play videos at the highest quality, dynamically resize video player, 4x playback speed, extra hotkeys to loop video and autoplay, and more! Works on mobile, desktop, and embed videos.
900 users
Youtube Ad Skipper
Ad Skipper is gives you less interrupted online streaming and skip or removes ad on behalf of you. It does not block an ads and auto skip or remove ads on MxPlayer, SonyLiv & Youtube web platform.
899 users
Make America Kittens Again
Replaces images of Donald Trump with kittens, because seriously, f*** that guy.
898 users
Helperbird: Accessibility & Productivity App
Your go-to for advanced reading, writing, and accessibility. Our features include voice typing, dyslexia support, an immersive reader, and a reading mode. Tailored to fit diverse abilities and learning styles, making the web accessible for all.
887 users
