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

Log in

8,102 extensions found in Web Development

Filter results
Search results
  • SVG Gobbler

    SVG Gobbler

    Open source browser extension for finding, editing, exporting, optimizing, and managing SVG content.

    Ross Moody

    4,729 users

  • Google Analytics Blocker

    Google Analytics Blocker

    Block Google Analytics in any website. If you are a developer and you do not want to watch your own visits on your page or you are just a web user that you do not want pages analyse you, this extension is for you.

    David Población

    4,727 users

  • retire.js

    retire.js

    Scanning website for vulnerable js libraries.

    Francesco De Stefano

    4,660 users

  • WebRTC Control

    WebRTC Control

    Have control over WebRTC (disable or enable) and protect your IP address.

    Bernard

    4,624 users

  • Elasticvue

    Elasticvue

    Elasticvue is a free and simple elasticsearch gui for your browser

    Carsten König

    4,546 users

  • Random User-Agent (Switcher)

    Random User-Agent (Switcher)

    Automatically change the user agent after a specified period of time to a randomly selected one, thus hiding your real user agent

    Paramtamtam

    4,522 users

  • xPath Finder

    xPath Finder

    Plugin to get the elements xPath.

    Tomasz Rembacz

    4,481 users

  • Always active Window (Always Visible)

    Always active Window (Always Visible)

    Pretend that all browser windows are active by spoofing the visibility state event

    Brian

    4,446 users

  • Pomodoro clock extension

    Pomodoro clock extension

    A simple pomodoro clock to hack your productivity.

    macmorning

    4,292 users

  • FlashPlayer - SWF to HTML

    FlashPlayer - SWF to HTML

    Open SWF links of Adobe Animate (Flash) in a pure sandboxed JavaScript emulator

    Chandler Stimson

    4,161 users

  • Salesforce inspector

    Salesforce inspector

    Productivity tools for Salesforce.com administrators and developers to inspect data and metadata.

    Jesper Kristensen

    4,127 users

  • Page Screenshot

    Page Screenshot

    Take a screenshot from the entire website with just one click.

    Bernard

    4,105 users

  • CSSViewer

    CSSViewer

    A simple yet powerful CSS property viewer. For Firefox Quantum

    Mohsen Khanpour

    4,090 users

  • SelectorsHub

    SelectorsHub

    xPath plugin to generate, write and verify xpath & cssSelector. It auto generates all kinds of relative xpath, axes xpath, index xpath, css selector.

    Sanjay Kumar | SelectorsHub Founder

    4,085 users

  • YouTube Download Button

    YouTube Download Button

    Free YouTube Download Button allows you to save YouTube video and audio files just in 1 click

    A Max

    4,028 users

  • ChatGPT Sidebar for Fire Fox

    ChatGPT Sidebar for Fire Fox

    Use ChatGPT in sidebar. You won't need to waste time switching between ChatGPT and other tabs.

    HamzaDev

    3,963 users

  • ColorFish 🐠 Color Picker

    ColorFish 🐠 Color Picker

    Open-Source Color Picker for Websites and Desktop Apps. With ColorFish you can get a color reading from any point in your browser and desktop. ColorFish is the only eyedropper browser extension with desktop color selection support.

    Ui.Vision Open-Source RPA Software

    3,937 users

  • Force Copy

    Force Copy

    Force Copy professionally circumvents limitations pertaining to Web Copying, Keyboard Usage, and Right-click Functionalities, facilitating an unhindered browsing experience. Open Source Project: https://github.com/WindrunnerMax/TKScript.

    WindRunnerMax

    3,892 users

  • View Page Source

    View Page Source

    View the source code of a page with the click of a button.

    Carlos Jeurissen

    3,892 users

  • Pixel Perfect Pro

    Pixel Perfect Pro

    Pixel Perfect Pro helps developers and designers to make best sites and more high quality products.

    max

    3,841 users

  • WCAG Contrast checker

    WCAG Contrast checker

    Checks for compliance with the contrast levels of foreground and background colors combination based on the requirements of WCAG 2.2

    Rumoroso

    3,813 users

  • Open With

    Open With

    Quickly test out your web pages in Chrome, Edge, Safari, or Opera. Open With opens the current page in your other browsers with just two clicks.

    Geoff Lankow

    3,802 users

  • Language Switch

    Language Switch

    Allows to change the language identifier sent to webservers to whatever language you need.

    Manuel Reimer

    3,781 users

  • Ahrefs SEO Toolbar: On-Page and SERP Tools

    Ahrefs SEO Toolbar: On-Page and SERP Tools

    Save hours with a complete toolkit in one SEO extension. Insights for on-page, keyword research, and link analysis on any webpage.

    Ahrefs

    3,770 users

  • XML Viewer Plus

    XML Viewer Plus

    A powerful XML Viewer, supports text/regex and jQuery/CSS, XPath selectors

    Francesco De Stefano

    3,660 users