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

Log in

8,779 extensions found in Web Development

Filter results
Search results
  • DevProblems: Developer Tips

    DevProblems: Developer Tips

    Fetch and display Developer Tips, News and Blogs from DevProblems

    DevProblems

    25 users

  • JSON Viewer

    JSON Viewer

    A modern UI for viewing and manipulating JSON

    dan3988

    25 users

  • Tek Tıkla W3C İşaretleme Doğrulaması

    Tek Tıkla W3C İşaretleme Doğrulaması

    Geçerli sayfayı W3C İşaretleme Doğrulama Hizmeti'ne gönderir.

    tr-wp.com

    25 users

  • Amazon Q Developer | GitHub issue helper

    Amazon Q Developer | GitHub issue helper

    Quickly assign GitHub issues to Amazon Q Developer - your AI assistant for code generation and transform tools.

    Amazon Q Developer

    25 users

  • Diff HTTP

    Diff HTTP

    Diff the network traffic in real-time to observe the URLs variant over time.

    limkokhole

    25 users

  • User Agent Spoofer

    User Agent Spoofer

    Advanced, modern user agent spoofer

    grimsteel

    25 users

  • Webex Meetings Policy

    Webex Meetings Policy

    Webex Meetings policy settings for companies

    Cisco WebEx

    25 users

  • Browser Calories

    Browser Calories

    The easiest way to measure your performance budget

    Zeno Rocha

    25 users

  • zBReviewBoard

    zBReviewBoard

    Enables screenshots for zipBoard

    ZipBoard

    25 users

  • ChatGPT Search For FF

    ChatGPT Search For FF

    Change default search engine to ChatGPT search. ChatGPT Search For FF integrates ChatGPT's AI capabilities directly into your browser's search functionality, providing intelligent, conversational responses alongside traditional search results.

    David Mir

    25 users

  • at://wormhole

    at://wormhole

    Open at:// links or active tab URL in various AT Protocol tools and Bluesky clients.

    alice

    25 users

  • Web Color Palette Extractor

    Web Color Palette Extractor

    Extract and manage web color palettes from web pages.

    Craig Davies

    24 users

  • WebExtension X-Ray

    WebExtension X-Ray

    Right click on addons.mozilla.org and you will see the source code of the extension

    Andrei Petcu

    24 users

  • Rapise Plugin for Firefox

    Rapise Plugin for Firefox

    Allows users of our Rapise automated software testing tool to record and play automated tests against the Firefox web browser.

    Inflectra Corporation

    24 users

  • autoClick3

    autoClick3

    自动点击特定页面按钮

    feng

    24 users

  • Redacted

    Redacted

    Redact text on a page before taking a screenshot of it.

    Stefan Bohacek

    24 users

  • MobiDevToolsFull

    MobiDevToolsFull

    A mobile devtools for debugging web sites and applications with the console, DOM, network info, sources, and more.

    Footmen

    24 users

  • Accessibility Visualizer

    Accessibility Visualizer

    Visualize important accessibility properties (accessible names, heading levels, form labels etc).

    ymrl

    24 users

  • Fire Page Editing

    Fire Page Editing

    Inject HTML, CSS or JavaScript into any web-page. The changes you make are applied everytime you visit the specified website(s).

    Francesco De Stefano

    24 users

  • Muslim Tab

    Muslim Tab

    Muslim Tab is an Islamic themed new tab page. Every time when you open a new tab, it displays a random verse from the Quran.

    Team Lunar

    24 users

  • Super CSS Inject

    Super CSS Inject

    Keep multiple stylesheets ready to inject and change on the fly!

    Nelson Rodrigues

    24 users

  • LeetCode format

    LeetCode format

    Adds Format code button on leetcode to format the code using Prettier code formatter

    Madhur Ahuja

    24 users

  • JSONPeek

    JSONPeek

    Passively identify JSONP endpoints as you browse with the ability to send suspected endpoints to an exploit server for validation.

    Hacks and Hops

    24 users

  • Color Contrast Checker

    Color Contrast Checker

    The Color Contrast Checker Firefox addon is a must-have tool for web developers and designers. It ensures accessibility by allowing users to easily test color combinations for optimal contrast, adhering to WCAG standards. With a simple interface

    SBOBET

    24 users

  • Clone in VS Code

    Clone in VS Code

    Clone any GitHub, GitLab or Bitbucket repository in Visual Studio Code

    Ahnaf Mahmud

    24 users