Mes modules favoris

by obaida

7 Add-ons in this Collection

Firebug by Joe Hewitt, Jan Odvarko, others

Rated 4 out of 5 stars 2,646 reviews

858,518 users

Firebug integrates with Firefox to put a wealth of development tools at your fingertips while you browse. You can edit, debug, and monitor CSS, HTML, and JavaScript live in any web page...

Web Developer by chrispederick

Rated 4 out of 5 stars 475 reviews

263,405 users

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

Flagfox by Dave G

Rated 5 out of 5 stars 858 reviews

245,652 users

Displays a country flag depicting the location of the current website's server and provides a multitude of tools such as site safety checks, whois, translation, similar sites, validation, URL shortening, and more...

Html Validator by Marc Gueury

Rated 4 out of 5 stars 212 reviews

30,925 users

HTML Validator is a Mozilla extension that adds HTML validation inside Firefox, Mozilla. The number of errors of a HTML page is seen on the form of an icon

For Firefox 56, use 0.974 (see all versions below).
For Firefox 57, see Web Extensions.

JavaScript Debugger by James Ross, Robert Ginda, others

Rated 4 out of 5 stars 51 reviews

59,651 users

As of Firefox 33, Venkman *no longer works*, as the APIs which it needs have been removed.

Venkman is the code name for Mozilla's JavaScript Debugger. Venkman aimed to provide a powerful JavaScript debugging environment for Mozilla based browsers.

Rainbow Color Tools by Heather Arthur

Rated 5 out of 5 stars 98 reviews

10,742 users

This addon is no longer being updated and won't work with new versions of Firefox. See the Colorzilla addon for a replacement: https://addons.mozilla.org/en-US/firefox/addon/colorzilla/.

Color tools for web development.

Firepicker by thedarkone2

Rated 5 out of 5 stars 56 reviews

4,815 users

Simple color picker plugin for Firebug.

What are Collections?

Collections are groups of related add-ons that anyone can create and share.

Explore Collections