Web Developer's Toolbox

by Mozilla

9 Add-ons in this Collection

Web Developer by chrispederick

Rated 4 out of 5 stars 465 reviews

270,406 users

The Web Developer extension adds various web developer tools to the browser.

React Developer Tools by React

Rated 4 out of 5 stars 40 reviews

44,669 users

React Developer Tools is a tool that allows you to inspect a React tree, including the component hierarchy, props, state, and more. To get started, just open the Firefox devtools and switch to the React tab.

Vue.js devtools by Evan You, Akryum

Rated 5 out of 5 stars 83 reviews

21,183 users

DevTools extension for debugging Vue.js applications.

Redux DevTools by Zalmoxisus

Rated 4 out of 5 stars 18 reviews

11,314 users

DevTools for Redux with actions history, undo and replay.

aXe Developer Tools by Deque Labs

Rated 5 out of 5 stars 14 reviews

3,078 users

Add accessibility auditing to the Firefox Developer Tools

Spector.js by BabylonJS

Rated 5 out of 5 stars 5 reviews

1,307 users

Easily explore and debug any WebGL context.

DevTools Media Panel by Karolien Koorts, Gerald Squelart

Rated 5 out of 5 stars 7 reviews

1,319 users

DevTools panel that displays detailed technical information about media elements on the current page; intended primarily for web developers to understand media playback issues on their sites, and for users to provide more informative bug reports.

Chrome Logger by Spencer T⋆ Obremski

Server-side debugging via web console, substituting native support for the Chrome Logger protocol developed by Craig Campbell ( https://craig.is/writing/chrome-logger/ ) in Firefox 43 – 56.

Laboratory (Content Security Policy / CSP Toolkit) by April King, Mozilla

Because good website security shouldn't only be available to mad scientists!

Laboratory is an experimental Firefox extension that helps you generate a Content Security Policy (CSP) header for your website.

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