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

Log in

12,151 extensions found in Web Development

Filter results
Search results
  • Mobile DevTools

    Mobile DevTools

    an extension that adds Eruda developer tools to Firefox Android. Lets you use the console, inspect elements, and network monitor on your phone

    mimvahedi

    4,876 users

  • Open in Google Chrome Browser

    Open in Google Chrome Browser

    Open current page or link in Chrome browser

    Andy Portmen

    4,857 users

  • WhatRuns

    WhatRuns

    Discover what runs a website - This Firefox extension helps you identify technologies used on any website at the click of a button.

    Whatruns

    4,824 users

  • SVG Gobbler

    SVG Gobbler

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

    Ross Moody

    4,756 users

  • Eye Dropper

    Eye Dropper

    Pick colors from any website.

    Extensions Hub

    4,741 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

    4,707 users

  • Copy Selected Links

    Copy Selected Links

    Right-click selected text to copy the URL of any links it contains.

    Marnes

    4,678 users

  • retire.js

    retire.js

    Scanning website for vulnerable js libraries.

    Francesco De Stefano

    4,677 users

  • Vercel

    Vercel

    Use the Vercel Toolbar on production deployments

    Vercel

    4,659 users

  • Ahrefs SEO Toolbar

    Ahrefs SEO Toolbar

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

    Ahrefs

    4,623 users

  • Mouse Gesture Events

    Mouse Gesture Events

    Control your browser faster and easier with gestures using mouse movement.

    Simpler

    4,583 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

    4,525 users

  • View Page Source

    View Page Source

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

    Jeurissen Apps

    4,483 users

  • Page Screenshot

    Page Screenshot

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

    Bernard

    4,384 users

  • View Image Info Reborn

    View Image Info Reborn

    Display info for the current image in a new window, new tab, or overlaid on the image. Convert WEBP images to PNG or JPEG. Send an image URL to TinEye for reverse image search. "View image..." in same tab? Check the screenshots for all the options.

    jscher2000

    4,382 users

  • Elasticvue

    Elasticvue

    Elasticvue is a free and simple elasticsearch gui for your browser

    Carsten König

    4,370 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

    4,367 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

    4,331 users

  • Vue.js Devtools v6 (legacy)

    Vue.js Devtools v6 (legacy)

    Browser DevTools extension for debugging Vue.js applications. This is the legacy version of Vue Devtools (v6) for Vue 2 compatibility.

    Vue.js

    4,085 users

  • HackBar

    HackBar

    A HackBar for new firefox (Firefox Quantum). This addon is written in webextension and alternatives to the XUL version of original Hackbar. Press F12 to use HackBar

    SecuriTeam

    4,075 users

  • FlashPlayer - SWF to HTML

    FlashPlayer - SWF to HTML

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

    Chandler Stimson

    4,049 users

  • Pomodoro clock extension

    Pomodoro clock extension

    A simple pomodoro clock to hack your productivity.

    macmorning

    4,043 users

  • FindSomething

    FindSomething

    在网页的源代码或js中找到一些有趣的东西。欢迎一起交流，微信canxiao_xiao

    residual.laugh

    3,993 users

  • Granted: access multiple AWS accounts at once

    Granted: access multiple AWS accounts at once

    View multiple cloud accounts and regions in a single browser.

    fwdcloudsec

    3,808 users

  • Spoof Geolocation

    Spoof Geolocation

    This extension alters browser Geolocation latitude and longitude to user-defined values

    Joue

    3,788 users