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

Log in

10,179 extensions found in Web Development

Filter results
Search results
  • KISaD JSON Viewer

    KISaD JSON Viewer

    Viewer for large json files using cloud9's ace editor.

    Firefox user 12606043

    101 users

  • Server View

    Server View

    View server information.

    shinpachinaide

    101 users

  • Disallow console.clear()

    Disallow console.clear()

    Disallows use of the console.clear() function on all websites.

    Sainan

    101 users

  • Panel Mobile

    Panel Mobile

    Displays a sidebar that allows you to view the mobile version of your web pages. Muestra una barra lateral que le permite ver la versión para móviles de sus páginas web.

    Martin Guadama

    100 users

  • URL Decrement Button

    URL Decrement Button

    A 1-Click URL Decrement Button for your toolbar. Works with or without URL Incrementer.

    Sixcious

    100 users

  • YouTube Audio

    YouTube Audio

    Convert YouTube videos to audio (MP3).

    YouTube Audio

    100 users

  • fly63工具箱

    fly63工具箱

    一款在线高效实用工具箱，无需客户端在线一键使用。拥有近上百款工具包括:程序员在线文档、在线转换、加密解密、站长工具、代码开发、Css样式、文本工具、二维码处理、图片处理、生活办公、娱乐工具等等。

    fly63

    100 users

  • YuiAPI

    YuiAPI

    An easy-to-use rest client that helps you test the api

    onlyfu

    99 users

  • LibJS Detector

    LibJS Detector

    Detects the JavaScript libraries running on a page and displays their icons in the address bar.

    Francesco De Stefano

    99 users

  • Discord TOKEN Checker tool

    Discord TOKEN Checker tool

    This is an add-on that allows you to obtain and confirm your own Discord token without using developer tools.

    chick

    99 users

  • GrabzIt Web Scraping Assistant

    GrabzIt Web Scraping Assistant

    Create Web Scrapes online easier than ever before with GrabzIt’s Web Scraping Assistant.

    GrabzIt

    99 users

  • Web Scraper - Export & Security Scanner

    Web Scraper - Export & Security Scanner

    Export complete websites as ZIP files with security scanning (45+ API key types), technology detection (45+ frameworks), smart resource filtering, and dark/light theme. Perfect for developers, security auditors, and web archivists.

    voon

    99 users

  • Youtube Overlay Remover

    Youtube Overlay Remover

    Toggle for hiding the youtube.com's HTML5 player overlay, that blocks vision at the top and bottom of the video when moving the mouse or pausing, in and out of full screen. Use Shift+Alt+X as default shortcut, or change it in the Extensions Manager.

    onekanaka

    99 users

  • MDN Web Docs Search

    MDN Web Docs Search

    Adds MDN Web Docs as a search option.

    Danny Bowen

    99 users

  • Allow Web Copy

    Allow Web Copy

    Ravi Prakash Yadav @ Lakshya Services.

    Lakshya Services India.

    99 users

  • Lecture Carte Vitale Version Beta usage GIESV

    Lecture Carte Vitale Version Beta usage GIESV

    Outil indispensable aux professionnels de santé leur permettant de lire les données de la carte Vitale® depuis un navigateur.

    GIE SESAM-Vitale pour l'Assurance Maladie

    99 users

  • RESTED APS

    RESTED APS

    A REST client for the rest of us, with APS features

    Gear

    98 users

  • SP REST JSON

    SP REST JSON

    SP REST JSON modifies the accept property in the request header for SharePoint REST API calls to get the response in JSON format and to show it directly in Firefox instead of downloading a XML file. Works for on-premises and SharePoint online.

    DDesch

    98 users

  • Userback

    Userback

    Real time user feedback, collaboration and screen capture tool.

    Userback

    98 users

  • Edit Anything any website

    Edit Anything any website

    Simple extension that allows you to edit text on any website. Twitter, Facebook, Instagram and popular news website.

    yaagame

    98 users

  • Dummy Text Generator - Dummy Text Lorem Ipsum

    Dummy Text Generator - Dummy Text Lorem Ipsum

    To help developers, programmers and testers, this extension allows the user to instantly generate and copy Lorem ipsum ummy text to clipboard.

    Firefox user 14114331

    98 users

  • New Tab Suspender v2

    New Tab Suspender v2

    A very lightweight tab suspender to suspend inactive tabs that reduces an overall memory usage of firefox, uses a firefox native discard api

    TabSuspender

    98 users

  • Medoro browser extension

    Medoro browser extension

    Extension for arranging web browser windows and tabs for smoother user's experience from our applications.

    Medoro s.r.o.

    98 users

  • Screenshot.rocks: One-click design mockups

    Screenshot.rocks: One-click design mockups

    Create beautiful browser and mobile mockups in one-click.

    Dave Earley

    98 users

  • Google Gemini - Wide Content & Resizable Width

    Google Gemini - Wide Content & Resizable Width

    Toggle max-width between 1200px and Google's "hardcoded" 760px on gemini.google.com conversations with a simple click on the addon icon in the toolbar! Also customize width of both halfs of the content windows with a slider!

    Dan

    97 users