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  • ReelSleek - Video Control for Instagram

    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.

    LordBaljeet

    960 users

  • Full Page Screenshotter

    Full Page Screenshotter

    Capture full-page screenshots in Firefox, including scrolling and app-style pages. Fast, local, private — no tracking or uploads.

    Amarjit

    956 users

  • Twitch Chat Danmaku

    Twitch Chat Danmaku

    Display the chat as danmaku(chat overlay) with fully customizable settings, compatible with emoticons!

    wheatup

    956 users

  • Web Component DevTools

    Web Component DevTools

    Developer tooling for Web Components and Web Component Libraries

    Matsuuu

    944 users

  • Mirror Video X

    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.

    Ed0ardo

    943 users

  • SpoPlus - Edit Spotify Theme & Settings

    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!

    fullstackdev

    943 users

  • Image Video Block

    Image Video Block

    Blocks or Hides visual elements (Images, Video, Flash, Canvas, SVG).

    Tibor Barsi

    939 users

  • Debug CSS

    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

    Pranay Joshi

    939 users

  • TST Colored Tabs

    TST Colored Tabs

    Colorize each tab in Tree Style Tab sidebar based on domain.

    Alexey Murz Korepov

    934 users

  • Auto hide next up card for Amazon Prime Video

    Auto hide next up card for Amazon Prime Video

    Hides next up card and other obtrusive elements of Amazon Prime Video.

    ryo-fujinone

    933 users

  • Top and Bottom scroll buttons

    Top and Bottom scroll buttons

    Adds scroll to Top and Bottom buttons on all sites

    Dm3

    927 users

  • X Video Downloader

    X Video Downloader

    Adds a Download button to videos on X (formerly Twitter).

    Streamvi

    922 users

  • The Snake Game

    The Snake Game

    Play the Snake game in popup in your browser. Eat, grow and try not to crash.

    mr_JSm1th

    919 users

  • Reddit Comment Collapser

    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

    tomjwatson

    917 users

  • Toggle dark mode

    Toggle dark mode

    Toggle the content’s color scheme between preferring light or dark (or inheriting)

    Cimbali

    917 users

  • Gifs autoplay for Google™

    Gifs autoplay for Google™

    Autoplays gifs on Google™ Search Images.

    KristijanRoss

    916 users

  • Blank New Tab

    Blank New Tab

    Use a blank page as your new tab page.

    xofe

    915 users

  • Sakuga Extended

    Sakuga Extended

    Enjoy a better experience with SAKUGABOORU! Previews on posts, frame control on videos...

    Wevolve Team

    911 users

  • PopUp

    PopUp

    Create a popup of pages with minimal browser UI; No bookmarks or navigation bar.

    aqt

    907 users

  • Save to Trello

    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.

    Arnaud LEMERCIER

    905 users

  • Custom UserAgent String

    Custom UserAgent String

    Add a custom useragent string for desired URLs or domains.

    Linder

    905 users

  • Clipboard Manager

    Clipboard Manager

    Easily access to recent clipboards via context-menu or toolbar popup.

    Muyor

    901 users

  • Make America Kittens Again

    Make America Kittens Again

    Replaces images of Donald Trump with kittens, because seriously, f*** that guy.

    tomroyal.com

    901 users

  • Youtube Ad Skipper

    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.

    Avinash Sakhreliya

    896 users

  • YouTubeUtils

    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.

    Andres Rodriguez

    895 users