To use these add-ons, you'll need to download Firefox.

Log in

10,425 extensions found in Appearance

Filter results
Search results
  • Dark Mode for Wikipedia

    Dark Mode for Wikipedia

    Dark mode for English Wikipedia.

    mrhirsch

    4,059 users

  • YouTube LiveChat Flusher (Danmaku Chat)

    YouTube LiveChat Flusher (Danmaku Chat)

    Provides bullet chatting (danmaku) on YouTube Live, like niconico or bilibili.

    _y_s

    4,009 users

  • Video & Audio Downloader

    Video & Audio Downloader

    Easily download video & audio streams via toolbar popup.

    Glin

    3,991 users

  • Ninja Cookie

    Ninja Cookie

    Ninja Cookie removes cookie banners by rejecting the use of non-essential cookies.

    Ninja Cookie

    3,972 users

  • HLS Downloader

    HLS Downloader

    Download fragmented media files with HLS (HTTP Live Streaming) downloader.

    Leonardo

    3,969 users

  • Flash Block (Plus)

    Flash Block (Plus)

    Provides control over Flash contents

    AdblockLite

    3,943 users

  • Checker Plus for Google Calendar™

    Checker Plus for Google Calendar™

    See your next events, get meeting desktop notifications, add or snooze events without opening the Google Calendar page!

    Jason Savard

    3,912 users

  • Google Docs Dark Mode

    Google Docs Dark Mode

    Dark mode for Google Docs!

    computer_king_

    3,881 users

  • Undo Closed Tabs Button

    Undo Closed Tabs Button

    Add a toolbar button onto any toolbar to undo closed tabs

    Thomas

    3,840 users

  • Improve Crunchyroll

    Improve Crunchyroll

    Enhance Crunchyroll: theater mode, skip intros/outros, mark as watched/not watched, fast forward/backward buttons, dark mode, ...

    Thomas Tavernier

    3,799 users

  • YouTube in HD (720p, 1080p, 1440p, 2160p)

    YouTube in HD (720p, 1080p, 1440p, 2160p)

    Watch YouTube in the full-HD quality or the highest available one

    James Fray

    3,794 users

  • Change Geolocation (Location Guard)

    Change Geolocation (Location Guard)

    Easily change your geographic location (Geolocation) to your desired one and protect your privacy.

    ilGur

    3,749 users

  • ✨ Awesome Emoji Picker ✨

    ✨ Awesome Emoji Picker ✨

    Modern, nice emoji picker that you can use to find 🔎 and select emojis. 😀 It will be copied to your clipboard 📋 or even directly inserted into the page, when you click 🖱️ on it. You will certainly like it. 😎

    rugk

    3,736 users

  • Route with Google Maps

    Route with Google Maps

    Find an address quickly using Google Maps. Select an address anywhere on a website, open the context menu, select "Route to ''your address" entry from the context menu and the route to the address will be shown in a new tab.

    Daniel Wiedner

    3,719 users

  • YouTube Windowed FullScreen

    YouTube Windowed FullScreen

    Watch videos on YouTube fullscreen within your browsers screen.

    navi.jador

    3,680 users

  • Dark Mode

    Dark Mode

    Adds a dark screen over everything rather than other high contrast "Dark mode" extensions

    Rojo

    3,666 users

  • Rotate Youtube Video (+ Zoom / Mirror)

    Rotate Youtube Video (+ Zoom / Mirror)

    Rotate - support 0°, 90°, 180°, 270° - affect Youtube video preview Zoom / Mirror - support long press +,- button * the value will be reset after pressing the reset button or the rotate button * not affect Youtube video preview

    znwyrz

    3,664 users

  • Textmarker

    Textmarker

    Permanent web text highlighter

    underflyingbirches

    3,663 users

  • No PDF Download

    No PDF Download

    Opens all PDF files directly in the browser.

    Merten Peetz

    3,650 users

  • Bookmarks Manager and Viewer

    Bookmarks Manager and Viewer

    An elegant bookmarks manager with fuzzy search and more

    InBasic

    3,590 users

  • Auto Fullscreen

    Auto Fullscreen

    Open all Firefox windows in full screen mode

    insiderser

    3,559 users

  • View Page Source

    View Page Source

    View the source code of a page with the click of a button.

    Carlos Jeurissen

    3,555 users

  • Invert Colors

    Invert Colors

    A simple FireFox add-on that inverts the web page colors (including images) to make pages easier to read in darker settings. Github repo: https://github.com/Max-Github/FireFoxInvertColors

    Max

    3,550 users

  • Reddit Ad Remover

    Reddit Ad Remover

    Removes Reddit 'PROMOTED' posts and advertisements in the feed and sidebar.

    Blizz3

    3,512 users

  • Old Layout for Facebook

    Old Layout for Facebook

    Revert Facebook to the Old Layout (pre-Sep 2020) by changing your browser's user-agent string to one not supported by the new layout

    ModernKit.one

    3,500 users