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

Log in

16,244 extensions found in Appearance

Filter results
Search results
  • YouTube Shorts Upload Date

    YouTube Shorts Upload Date

    Shows upload dates directly on YouTube Shorts cards and Shorts watch pages.

    Axmatis

    5 users

  • Smart Tab Re(gex)namer

    Smart Tab Re(gex)namer

    A smart tab renamer powered by regexes: enables tab renaming using regex.

    k1nz

    5 users

  • Customize and Hide YouTube Player Interface

    Customize and Hide YouTube Player Interface

    Revert the style of the new YouTube Interface (2025) to match the old style (2015-2025). Customize the Interface with Styles to hide any element you want. Toggle the YouTube Player Interface with a simple shortcut.

    FlyingHairball

    5 users

  • AI YouTube Comment Summary

    AI YouTube Comment Summary

    AI YouTube Comment Summary is a browser extension that helps users bypass "comment noise." It provides a structured, AI-generated summary of the audience's response directly above the comment section on YouTube videos.

    iFreaku

    5 users

  • Remove Quora Sign In Blocker

    Remove Quora Sign In Blocker

    Removes Quora Sign In blocker

    someone_by_someplace

    5 users

  • Green Pi

    Green Pi

    Beautiful math wherever you want.

    Nico Schlömer

    5 users

  • Refined ProtonCalendar

    Refined ProtonCalendar

    Implements a number of usability improvements in the ProtonCalendar web app

    Jason Ku

    5 users

  • Microslop Replacer

    Microslop Replacer

    Replaces 'Microsoft' with 'Microslop' on all websites.

    Lucky Luk

    5 users

  • NoAI - Remove AI clutter from the Internet

    NoAI - Remove AI clutter from the Internet

    Blocks unwanted AI chatbots, assistants, and AI-generated overlays on websites, using community-maintained filter lists plus custom cosmetic filtering rules to hide unwanted elements

    DiluteOxygen

  • Gen Z brainrot fixer

    Gen Z brainrot fixer

    The ultimate solution to Gen Z's short attention span! Neat focus tool channeling our inner iPad kid.

    Milan Spiridonov

    5 users

  • XKCD Newtab

    XKCD Newtab

    Replaces your newtab with a random xkcd.

    Luke Wright

    5 users

  • New Tab Todo

    New Tab Todo

    A simple todo app that replaces the new tab page. You can add your tasks for the day and mark them as completed.

    Muhammad

    5 users

  • webcontrol

    webcontrol

    webcontrol features tools to handle page content like extraction of images, download for offline, etc. The purpose is to facilitate control over web page content. Click on the add-on icon for its action.

    Firefox user 14098328

    5 users

  • Test Text Generator

    Test Text Generator

    Insert test texts like Lorem Ipsum into any text input when you right click on it

    Shing Lyu

    5 users

  • ISBN Search & Lookup

    ISBN Search & Lookup

    Generate search links for any ISBN found on the webpage.

    Vanry

    5 users

  • Bangtan Boys Wallpaper HD New Tab Theme

    Bangtan Boys Wallpaper HD New Tab Theme

    Custom new tab with wallpapers and widgets including todo list, weather, time, popular websites links: Facebook, Google, Youtube ...

    Alston Huo

    5 users

  • Khushkhat

    Khushkhat

    Beautifies Arabic, Persian, Urdu, Pashto and other right-to-left (RTL) languages

    Ihya

    5 users

  • FlagBar | Nonbinary Flag YT-Progress Bar

    FlagBar | Nonbinary Flag YT-Progress Bar

    Replaces YouTube's red progress bar with a nonbinary flag gradient.

    Czogista

    5 users

  • Rainbow Text

    Rainbow Text

    Apply beautiful rainbow colour gradients to text on any webpage. Choose from 6 presets: Neon, Soft Rainbow, Pastel, Ocean, Sunset, and Forest.

    Rainbow Text

    5 users

  • YouTube Restyler

    YouTube Restyler

    Reverts some YouTube style changes

    TheBlueRuby

    5 users

  • blank

    blank

    Blank new tab page or a new tab for the specified url.

    antwhere.com

    5 users

  • Monopoly-One Background Changer

    Monopoly-One Background Changer

    Simple extension to change your background in web-game monopoly-one.com

    KingleyStudio

    5 users

  • HBO Europe Keyboard Shortcuts

    HBO Europe Keyboard Shortcuts

    Adds keyboard shortcuts for fullscreen, pausing, muting, volume controls and skipping to the video player of hbonordic.com and other HBO Europe sites. Like this extension? Buy me a coffee.

    André Laszlo

    5 users

  • HoFF - [Hide Offline Facebook Friends]

    HoFF - [Hide Offline Facebook Friends]

    By default Facebook does show all friends, even if they're offline. As such Facebook, does not support to hide offline friends on Facebook chat. So, there was a desperate need to hide all friends, who were offline, HoFF does that for you.!

    Narender

    5 users

  • Force Old Reddit Design

    Force Old Reddit Design

    Redirect any reddit URL into old.reddit.com so the page will display in the older design of reddit

    Abo Sharkas

    5 users