Top 10 Web Developer Add-ons

by David Cancel

9 Add-ons in this Collection

Firebug by Joe Hewitt, Jan Odvarko, others

Rated 4 out of 5 stars 2,100 reviews

1,322,613 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...

Ghostery by Ghostery

Rated 4 out of 5 stars 1,506 reviews

943,410 users

Increase your browsing privacy, protection, and speed.

ColorZilla by Alex Sirota

Rated 4 out of 5 stars 384 reviews

162,974 users

Advanced Eyedropper, Color Picker, Gradient Generator and other colorful goodies...

YSlow by YSlow

Rated 3 out of 5 stars 221 reviews

37,433 users

YSlow analyzes web pages and suggests ways to improve their performance based on a set of rules for high performance web pages.
http://yslow.org is the official open source website.

Quick Locale Switcher by ppclick

Rated 3 out of 5 stars 86 reviews

157,978 users

Allows you to quickly switch to a different language (User Interface, Spell Checker Dictionary and Website content) in your Mozilla application.

Firecookie by Jan Odvarko

Rated 4 out of 5 stars 61 reviews

814 users

Firecookie is an extension for Firebug that makes possible to view and manage cookies in your browser

Firecookie is part of Firebug since Firebug 1.10

Shareaholic | share with Google, Facebook and more by The Shareaholic Team

Rated 4 out of 5 stars 256 reviews

4,815 users

Shareaholic is the easiest way to share & bookmark great content from anywhere on the web from one simple ALL-IN-ONE add-on. Works with Facebook, Twitter, Pinterest, Google, LinkedIn, E-mail and 200+ additional services.

DOM Inspector by Scott MacGregor

Rated 2 out of 5 stars 5 reviews

8 users

Inspect the DOM of HTML, XUL, and XML pages, including the mail...

Console² by Philip Chee, zeniko

Rated 5 out of 5 stars 49 reviews

3,509 users

Console² (pronounced Console Squared or Console Two) replaces the JavaScript Console with what could be the next generation Error Console. From v0.5 includes the Console Filter extension previously available separately from the Console² website.

What are Collections?

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

Explore Collections