Web Developer's Toolbox

by Mozilla

12 Add-ons in this Collection

Firebug by Joe Hewitt, Jan Odvarko, others

Rated 5 out of 5 stars 1,791 reviews

2,215,748 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...

Greasemonkey by Anthony Lieuallen, Aaron Boodman, others

Rated 4 out of 5 stars 957 reviews

1,260,853 users

Customize the way a web page displays or behaves, by using small bits of JavaScript.

iMacros for Firefox by iMacros

Rated 4 out of 5 stars 382 reviews

430,213 users

Automate Firefox. Record and replay repetitious work. If you love the Firefox web browser, but are tired of repetitive tasks like visiting the same sites every days, filling out forms, and remembering passwords, then iMacros for Firefox is the soluti...

User Agent Switcher by chrispederick

Rated 4 out of 5 stars 251 reviews

363,887 users

The User Agent Switcher extension adds a menu and a toolbar button to switch the user agent of a browser.

Stylish by Jason Barnabe

Rated 4 out of 5 stars 752 reviews

670,765 users

Restyle the web with Stylish, a user styles manager. Stylish lets you easily install themes and skins for Google, Facebook, YouTube, Orkut, and many, many other sites. You can even customize Firefox and other programs themselves.

ColorZilla by Alex Sirota

Rated 5 out of 5 stars 305 reviews

294,326 users

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

Web Developer by chrispederick

Rated 5 out of 5 stars 217 reviews

557,130 users

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

FoxyProxy Standard by Eric H. Jung, groeg, others

Rated 4 out of 5 stars 342 reviews

290,857 users

FoxyProxy is an advanced proxy management tool that completely replaces Firefox's limited proxying capabilities. For a simpler tool and less advanced configuration options, please use FoxyProxy Basic.

FireFTP by Mime Čuvalo

Rated 4 out of 5 stars 934 reviews

554,213 users

FireFTP is a free, secure, cross-platform FTP/SFTP client for Mozilla Firefox which provides easy and intuitive access to FTP/SFTP servers.

Check out my new project, FireSSH!

Tiny JavaScript Debugger by Patrick Brunschwig

Rated 4 out of 5 stars 5 reviews

35,524 users

TinyJSD is a JavaScript debugger for privileged code running Mozilla products like Firefox, Thunderbird, SeaMonkey. It serves to debug the application as well as extensions written in JavaScript.

YSlow by YSlow

Rated 3 out of 5 stars 195 reviews

98,548 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.

Rainbow Color Tools by Heather Arthur

Rated 5 out of 5 stars 94 reviews

33,860 users

Color tools for web development.

Color picker and eyedropper + saving colors and trying out colors with drag and drop.

What are Collections?

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

Explore Collections

More by this User

See all collections by this user

Recently Viewed