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

Log in

9,802 extensions found in Web Development

Filter results
Search results
  • PoE Overlay Sync

    PoE Overlay Sync

    Sync your Path of Exile session with PoE Overlay

    Kyusung4698

    1,406 users

  • View Background Image

    View Background Image

    Adds "View Background Image" to the context menu.

    foooomio

    1,392 users

  • Web Edit

    Web Edit

    Easily edit websites temporarily with a click of a button.

    Ryan Luu

    1,368 users

  • Katalon Recorder | Automated Selenium Tests Genera

    Katalon Recorder | Automated Selenium Tests Genera

    Selenium IDE alternative to record and export Selenium scripts. Provides reports & screenshots. Fast & open-sourced.

    Katalon.com

    1,364 users

  • Rotate that Video Player

    Rotate that Video Player

    Improve your video experience by effortlessly rotating your video clips by 90, 180, or 270 degrees.

    Stefan vd

    1,356 users

  • ASBPlayer: Learn with Subs

    ASBPlayer: Learn with Subs

    Language learning subtitle player for streaming platforms like Netflix, YouTube, and more.

    MirSolUu

    1,355 users

  • ТУБЕРНЕТ - Твой ВПН для любимых сервисов

    ТУБЕРНЕТ - Твой ВПН для любимых сервисов

    ТУБЕРNET - Бесплатный VPN для YouTube, ChatGPT, Claude, Gemini, Grok, Instagram, Facebook, X, Discord, TikTok, Threads, RuTracker, LinkedIn, Telegram, WhatsApp, Spotify, Snapchat, Ficbook, Canva Обход блокировки Ютуба, Инстаграм, Фейсбук, Дискорд.

    DevFusion

    1,351 users

  • Copy URL To Clipboard

    Copy URL To Clipboard

    Copy document URL / link URL to clipboard as HTML, Markdown, Text etc.

    asamuzaK

    1,346 users

  • (Animated) Nyan Cat Progress Bar for YouTube™

    (Animated) Nyan Cat Progress Bar for YouTube™

    Nyan Cat Progress Bar for YouTube™ ~~ [Animated] ~~

    Ferris Etanish

    1,332 users

  • External Application Button (WebExtension)

    External Application Button (WebExtension)

    A highly customizable external application button and context-menu items

    Andy Portmen

    1,326 users

  • autoClick

    autoClick

    I make clicks... for real. If you play idle/clicker games this one is for you. Just select a key in your keyboard and press it down for the mouse to left-click, and you can it pressed down for all the time you want.

    mmoroca

    1,323 users

  • IndicateTLS

    IndicateTLS

    Displays negotiated SSL/TLS protocol version and additional security information in the address bar

    Jannis Pinter

    1,322 users

  • Youtube Play All

    Youtube Play All

    Adds a 'Play All' button to YouTube, allowing video playback in Latest, Popular, or Oldest order.

    CatBraaain

    1,317 users

  • MetaMask Legacy Web3

    MetaMask Legacy Web3

    Adds MetaMask's legacy window.web3 API to your browser

    danfinlay

    1,307 users

  • Augury

    Augury

    Extends the Developer Tools, adding tools for debugging and profiling Angular applications.

    Rangle.io

    1,299 users

  • Swagger UI

    Swagger UI

    Swagger-UI for Firefox

    Steven Tappert

    1,285 users

  • Talisman Wallet

    Talisman Wallet

    The self-custody wallet for the next era of intelligent DeFi. One unified portfolio for Ethereum, Solana, Bittensor, Polkadot, and more.

    Talisman

    1,281 users

  • Window Resizer

    Window Resizer

    Resize the browser window. The resolution list supports customization.

    antwhere.com

    1,273 users

  • Multiple Search and Highlight

    Multiple Search and Highlight

    Highlight multiple words separated by comma, space or arbitrary separator with regular expression support

    Brian

    1,255 users

  • Alpine.js devtools

    Alpine.js devtools

    DevTools extension for debugging Alpine.js applications.

    Hugo

    1,249 users

  • Gemini next to Google results

    Gemini next to Google results

    🗨️ Gemini answer alongside Google results.

    OptiSearch

    1,243 users

  • NoFollow

    NoFollow

    Outlines nofollow links, detect nofollow and noindex meta tags on webpages. Features website filtering and custom CSS outline styles

    Igor Jerosimić

    1,238 users

  • Download with FlashGet

    Download with FlashGet

    when activated, interrupts the built-in download manager to direct links to FlashGet

    Joe Ertaba

    1,236 users

  • Page Hacker

    Page Hacker

    Edit in Firefox the page displayed in any tab, with formatting tools.

    nico@nc

    1,231 users

  • Spector.js

    Spector.js

    Easily explore and debug any WebGL context.

    BabylonJS

    1,216 users