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

Log in

19,065 extensions found in Appearance

Filter results
Search results
  • Selection Context Search

    Selection Context Search

    - Right click on a selected text and choose the search website from the popup window or the context menu - Edit the website list in Add-on Options page or by using the Bookmarks - Unlimited depth of nested folders in the context menu

    ContainersOnTheGo

    1,283 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

    1,275 users

  • AutoPagerize Advanced

    AutoPagerize Advanced

    A customized version of the Autopagerize extension created by swdyh

    John

    1,272 users

  • Material Icons for Github

    Material Icons for Github

    Replace the file/folder icons on github file browsers with icons representing the file's type and which tool it is used by.

    Claudio Santos

    1,271 users

  • Fast, private, track-free search

    Fast, private, track-free search

    Set DDG as your default search engine for fast, private, ad-free search. Block trackers, protect your data, and browse anonymously.

    J Anderson

    1,267 users

  • Super History & Cache Cleaner

    Super History & Cache Cleaner

    Clear your browser history, cache and cookies on a selected interval in just one click!

    Alexey Kuznetsov

    1,256 users

  • RTL Helper

    RTL Helper

    Fix RTL layout issues for Persian, Arabic, Hebrew and other right-to-left languages

    Reza Asadi

    1,250 users

  • ReelSleek - Instagram Video Control & Download

    ReelSleek - Instagram Video Control & Download

    ReelSleek adds quality volume control, precise seek bar, download, auto scroll, rotate, full screen, theater mode and more! Enjoy the experience native Instagram does not provide!

    LordBaljeet

    1,249 users

  • Gixen eBay Auction Sniper

    Gixen eBay Auction Sniper

    Gixen Auction Sniper for Firefox. This will allow you to Snipe Auctions on eBay though Gixen.com Free Auction Sniping Service with Autosnipe

    Keith Hopkins

    1,245 users

  • Image Block X

    Image Block X

    Image Block X gives you a simple button to change whether or not to load images. Click it once to stop Firefox from loading images, and click it again to allow images again. It's that simple!

    Christian Kuhl

    1,245 users

  • Reader Mode

    Reader Mode

    Change the currently opened tab to reader mode if available.

    Nabendu

    1,244 users

  • Canvas Fingerprint Defender

    Canvas Fingerprint Defender

    Defending against canvas fingerprinting by reporting a fake value.

    ilGur

    1,243 users

  • AdBlock Bypass Detector & Popup Remover

    AdBlock Bypass Detector & Popup Remover

    Remove overlays, sticky headers, and anti-adblock walls. Includes Reader Mode, Dark Mode, and a custom Element Zapper

    CieloWeb

    1,240 users

  • Study Tools voor Magister

    Study Tools voor Magister

    Study Tools brengt veel verbeteringen aan op Magister, Nederlands grootste elektronische leeromgeving. Kies aangepaste thema's, omzeil vervelende user interfaces en bereken gemakkelijk je cijfers.

    QkeleQ10

    1,232 users

  • Telephone Number Detection

    Telephone Number Detection

    Automatically convert phone numbers into clickable links, compatible with many telephony applications.

    CTI-Telephony

    1,226 users

  • Tab Sidebar

    Tab Sidebar

    Adds a sidebar with foldable tabs.

    Nobuyuki Honda

    1,225 users

  • Furigana

    Furigana

    A web extension, Auto insert furigana (phonetic characters) on Japanese kanji.

    EYHN

    1,224 users

  • ytcFilter

    ytcFilter

    The most powerful and intuitive YouTube chat filter extension.

    RomainLK

    1,217 users

  • Page Marker

    Page Marker

    Page Marker: draw, highlight and annotate any webpage.

    Jiru Gutema

    1,212 users

  • Prettier Lichess

    Prettier Lichess

    Lichess, but prettier.

    noahsemus

    1,212 users

  • Search on Baidu

    Search on Baidu

    A menu option to search selected text on Baidu

    seinlin

    1,210 users

  • mail.com MailCheck

    mail.com MailCheck

    Mail notifier for multiple email accounts.

    1&1 Mail & Media GmbH

    1,208 users

  • Audio Only for YouTube™

    Audio Only for YouTube™

    Listen to audio (no video) in YouTube and all embedded videos.

    Sevina

    1,202 users

  • BewlyCat

    BewlyCat

    Just make a few small changes to your Bilibili homepage.

    Keleus

    1,187 users

  • Better Videos for Instagram: Playback & Volume

    Better Videos for Instagram: Playback & Volume

    Take control of Instagram videos with playback speed and volume controls, Picture-in-Picture, fullscreen, and automatic skipping.

    Emir Kabal

    1,185 users