Repositories list

• playwright-bidi-dashboard

  Public
  Is Playwright ready for BiDi yet?

  JavaScript

  •0•1•0•0•Updated Feb 22, 2026Feb 22, 2026

• profiler

  Public

  firefox-devtools/profiler’s past year of commit activity
  Firefox Profiler — Web app for Firefox performance analysis

  reactreduxjavascript+ 5firefoxperformanceprofilerdevtoolsgecko-profiler

  TypeScript

  •

  Mozilla Public License 2.0

  •453•1.5k•768•75•Updated Feb 20, 2026Feb 20, 2026

• profiler-server

  Public
  Firefox Profiler server and data storage infrastructure

  TypeScript

  •

  Mozilla Public License 2.0

  •13•21•9•2•Updated Feb 18, 2026Feb 18, 2026

• react-contextmenu

  Public
  This is a fork of the original react-contextmenu, to fix a few bugs that were impairing the Firefox Profiler.

  JavaScript

  •

  MIT License

  •379•9•0•2•Updated Feb 17, 2026Feb 17, 2026

• firefox-devtools.github.io

  Public

  firefox-devtools/firefox-devtools.github.io’s past year of commit activity
  Community & Documentation

  firefoxdevtoolswebdevelopment

  HTML

  •

  Mozilla Public License 2.0

  •12•11•2•0•Updated Feb 9, 2026Feb 9, 2026

• bidi-har-export

  Public
  Experimental module to compile WebDriver BiDi network events as a HAR file

  JavaScript

  •3•9•4•0•Updated Jan 23, 2026Jan 23, 2026

• playwright

  Public
  Playwright is a framework for Web Testing and Automation. It allows testing Chromium, Firefox and WebKit with a single API.

  TypeScript

  •

  Apache License 2.0

  •5.2k•0•0•0•Updated Dec 22, 2025Dec 22, 2025

• firefox-profiler-for-chrome

  Public

  firefox-devtools/firefox-profiler-for-chrome’s past year of commit activity
  Firefox Profiler extension for Chromium-based browsers

  chrome-extensionperformanceweb-performance+ 3profilerdeveloper-toolsfirefox-profiler

  JavaScript

  •

  Mozilla Public License 2.0

  •1•1•1•1•Updated Nov 16, 2025Nov 16, 2025

• performance-landing-page

  Public

  firefox-devtools/performance-landing-page’s past year of commit activity
  HTML

  •1•0•0•0•Updated Nov 3, 2025Nov 3, 2025

• remote-settings-mdn-browser-compat-data

  Public

  firefox-devtools/remote-settings-mdn-browser-compat-data’s past year of commit activity
  Scripts to ingest MDN compat data in RemoteSettings

  JavaScript

  •3•2•0•0•Updated Jun 13, 2025Jun 13, 2025

• vscode-firefox-debug

  Public
  VS Code Debug Adapter for Firefox

  TypeScript

  •

  MIT License

  •71•435•80•4•Updated Feb 28, 2025Feb 28, 2025

• bidi-webconsole-prototype

  Public
  CSS

  •

  Mozilla Public License 2.0

  •2•10•6•0•Updated Aug 20, 2024Aug 20, 2024

• ux

  Public archive
  Firefox DevTools UX Community

  Mozilla Public License 2.0

  •20•102•79•0•Updated Nov 17, 2023Nov 17, 2023

• debugger-examples

  Public
  Collection of good debugging examples

  JavaScript

  •

  Creative Commons Zero v1.0 Universal

  •23•43•2•63•Updated Oct 3, 2023Oct 3, 2023

• good-first-bugsify

  Public
  A WebExtension to help you mark Firefox Developer Tools bugs in Bugzilla as good first bugs.

  JavaScript

  •2•2•4•0•Updated Aug 28, 2023Aug 28, 2023

• performance-scenarios

  Public archive
  JavaScript

  •

  Mozilla Public License 2.0

  •1•3•0•0•Updated Mar 9, 2023Mar 9, 2023

• storage-assessment

  Public
  A test page to assess the status of storage panels

  HTML

  •

  Mozilla Public License 2.0

  •2•2•1•0•Updated Mar 9, 2023Mar 9, 2023

• performance-dashboard

  Public
  Dashboard to track performance of Firefox DevTools

  JavaScript

  •

  Mozilla Public License 2.0

  •4•8•0•0•Updated Mar 9, 2023Mar 9, 2023

• devtools-bug-finder

  Public
  Find easy and mentored devtools bugs

  JavaScript

  •

  Mozilla Public License 2.0

  •93•25•9•1•Updated Mar 9, 2023Mar 9, 2023

• docs

  Public
  Documentation for Firefox Developer Tools

  HTML

  •

  Mozilla Public License 2.0

  •15•28•0•2•Updated Mar 9, 2023Mar 9, 2023

• debugger

  Public archive
  The faster and smarter Debugger for Firefox DevTools 🔥🦊🛠

  reactreduxjavascript+ 7debuggerfirefoxchromenodedevtoolsmozillaflowtype

  749•4.6k•0•0•Updated Jan 11, 2023Jan 11, 2023

• devtools-examples

  Public
  Code examples that accompany the MDN Firefox Developer Tools documentation

  toolsdevtoolsdevtools-documentation+ 1mdn-docs

  HTML

  •

  Creative Commons Zero v1.0 Universal

  •17•27•0•0•Updated Sep 14, 2022Sep 14, 2022

• devtools-core

  Public archive
  :rocket: Packages for Firefox DevTools

  reactfirefoxdevtools+ 1flowtype

  JavaScript

  •95•144•100•55•Updated Sep 21, 2021Sep 21, 2021

• devtools-license-check

  Public
  JavaScript

  •1•0•1•0•Updated Mar 24, 2021Mar 24, 2021

• Gecko-Profiler-Addon

  Public archive
  (deprecated) Addon to control the Gecko Built-in Profiler

  firefoxperformancefirefox-addon+ 1profiler

  HTML

  •22•22•0•0•Updated Mar 27, 2020Mar 27, 2020

• demos

  Public archive
  INACTIVE - http://mzl.la/ghe-archive - Demos for new features in Firefox DevTools

  inactiveunmaintained

  HTML

  •

  Mozilla Public License 2.0

  •6•10•0•0•Updated Dec 18, 2019Dec 18, 2019

• rfcs

  Public archive
  RFCs for changes to DevTools

  feedbackdevtoolsrfc+ 1rfc-process

  11•15•5•0•Updated Nov 15, 2019Nov 15, 2019

• webcompat-helper

  Public archive
  INACTIVE - http://mzl.la/ghe-archive

  inactiveunmaintained

  JavaScript

  •

  Mozilla Public License 2.0

  •1•4•0•0•Updated Nov 7, 2019Nov 7, 2019

• debugger-docker

  Public archive
  Scripts for working with Docker images for debugger.html

  Makefile

  •0•2•1•0•Updated Mar 28, 2019Mar 28, 2019

• working-on-the-new-console

  Public archive
  Advice if you're contributing to the new console front-end

  1•5•1•0•Updated Mar 28, 2019Mar 28, 2019