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

Log in

6,980 extensions found in Web Development

Filter results
Search results
  • xPath Finder

    xPath Finder

    Plugin to get the elements xPath.

    Tomasz Rembacz

    4,833 users

  • Elasticvue

    Elasticvue

    Elasticvue is a free and simple elasticsearch gui for your browser

    Carsten König

    4,693 users

  • simple-modify-headers

    simple-modify-headers

    The extension rewrite the header (request or response) based on a rules table. It 's possible to add, modify or remove header fields for a choosen url pattern. It's possible to import/export the configuration

    Didierfred

    4,676 users

  • Tải video Youtube

    Tải video Youtube

    Tiện ích cho phép bạn tải video và chuyển đổi sang file MP3 từ Youtube dễ dàng và nhanh chống

    A Max

    4,670 users

  • Salesforce inspector

    Salesforce inspector

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

    Jesper Kristensen

    4,655 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

    4,542 users

  • FlashPlayer - SWF to HTML

    FlashPlayer - SWF to HTML

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

    Chandler Stimson

    4,535 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

    4,515 users

  • Pomodoro clock extension

    Pomodoro clock extension

    A simple pomodoro clock to hack your productivity.

    macmorning

    4,450 users

  • CSSViewer

    CSSViewer

    A simple yet powerful CSS property viewer. For Firefox Quantum

    Mohsen Khanpour

    4,401 users

  • retire.js

    retire.js

    Scanning website for vulnerable js libraries.

    Francesco De Stefano

    4,382 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

    4,322 users

  • WebRTC Control

    WebRTC Control

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

    Bernard

    4,308 users

  • Page Screenshot

    Page Screenshot

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

    Bernard

    4,292 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

    4,240 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

    4,217 users

  • GoPlay Extension

    GoPlay Extension

    Allow Playback for GoPlay Server 2, Server 5, and Server 8.

    Arms

    4,151 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

    4,108 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

    4,036 users

  • Language Switch

    Language Switch

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

    Manuel Reimer

    4,020 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

    4,005 users

  • XML Viewer Plus

    XML Viewer Plus

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

    Francesco De Stefano

    3,910 users

  • Open in Tor Browser

    Open in Tor Browser

    Open current page or link in tor browser for better privacy

    Andy Portmen

    3,886 users

  • Ahrefs SEO Toolbar: On-Page and SERP Tools

    Ahrefs SEO Toolbar: On-Page and SERP Tools

    On-page SEO report, broken link checker, redirect tracer, and country changer for SERP in one add-on. If you have an active account at ahrefs.com, you will also get instant access to Page, Domain, and keyword metrics via your Ahrefs account.

    Ahrefs

    3,874 users

  • ChroPath

    ChroPath

    ChroPath helps to generate and validate selectors like relative xpath, cssSelector etc with iframe support.

    AutonomIQ

    3,841 users