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

Log in

10,351 extensions found in Web Development

Filter results
Search results
  • Easy to RSS

    Easy to RSS

    Retreive RSS feeds URLs from WebSite, RSSHub supported

    idealclover

    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

  • Metaview

    Metaview

    Quickly view social meta tags for a page, and preview how your page will look when embedded on social media.

    Tim Heap

    99 users

  • URL Decrement Button

    URL Decrement Button

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

    Sixcious

    99 users

  • phab-conventional-comments

    phab-conventional-comments

    Adds a control in Phabricator comment toolbar to insert pre-defined label in the comment textarea

    nchevobbe

    99 users

  • Github Whitespace Disabler

    Github Whitespace Disabler

    Force Github to open diff pages without whitespace changes displayed. Inspired by: https://github.com/kemo/github-whitespace-disabler

    Oliver Maksimovic

    99 users

  • Lottie Grabber

    Lottie Grabber

    Discover and download Lottie files used on a page

    Jawish Hameed

    99 users

  • Gemini Chat Exporter

    Gemini Chat Exporter

    Export Google Gemini chat history to structured JSON files locally. Features include bulk selection, search/filter, and automatic sidebar syncing. Privacy-focused: all scraping happens on your device.

    Dev

    99 users

  • PlePer Tools - Open Google Maps from SERP KG

    PlePer Tools - Open Google Maps from SERP KG

    PlePer Tools - Open Google Maps from SERP Knowledge Graph

    Stan Kolev

    99 users

  • Quantum Hackbar

    Quantum Hackbar

    Hackbar port for the new WebExtensions API. It's redesigned and optimized to work with the new Firefox Quantum. It sits in your DevTools - Click F12 to open it. Any suggestions and/or issues are welcome :)

    StyleShit

    98 users

  • Disallow console.clear()

    Disallow console.clear()

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

    Sainan

    98 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

    98 users

  • MDN Web Docs Search

    MDN Web Docs Search

    Adds MDN Web Docs as a search option.

    Danny Bowen

    98 users

  • Visily - Screenshot Capture & Design

    Visily - Screenshot Capture & Design

    Easily capture app and website screenshots and turn them into fully editable wireframes in Visily.

    Visily

    98 users

  • Userback

    Userback

    Real time user feedback, collaboration and screen capture tool.

    Userback

    97 users

  • Prompt Blaze - AI Prompt Chaining Simplified

    Prompt Blaze - AI Prompt Chaining Simplified

    Store, execute & automate AI tasks with simplified prompt chaining — on any website.

    Wesley Atkins

    97 users

  • Better Ruler

    Better Ruler

    一款支持吸附页面元素的网页测量工具

    paul

    97 users

  • YuiAPI

    YuiAPI

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

    onlyfu

    96 users

  • Open in Vivaldi

    Open in Vivaldi

    Open current page, link, or all tabs in the Vivaldi browser.

    Andy Portmen

    96 users

  • Screenshot.rocks: One-click design mockups

    Screenshot.rocks: One-click design mockups

    Create beautiful browser and mobile mockups in one-click.

    Dave Earley

    96 users

  • URL Throttler

    URL Throttler

    This simple and straightforward add-on allows you to delay network responses from a custom list of URLs for a specified amount of time.

    Joseph Coyle

    96 users

  • DeepMaker - AI Image Editing

    DeepMaker - AI Image Editing

    Advanced AI tools for image editing, enhancement, and generation. Create, edit, and transform images with cutting-edge AI models.

    DeepMaker

    96 users

  • DownExtZip

    DownExtZip

    Download browser extension's source code as zip

    FoxRefire

    95 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

    95 users

  • KISaD JSON Viewer

    KISaD JSON Viewer

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

    Firefox user 12606043

    95 users