for Web Creator

by ethertank

15 Add-ons in this Collection

Firebug by Joe Hewitt, Jan Odvarko, others

Rated 4 out of 5 stars 2,090 reviews

1,416,790 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...

User Agent Switcher by chrispederick

Rated 4 out of 5 stars 276 reviews

225,690 users

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

Web Developer by chrispederick

Rated 5 out of 5 stars 270 reviews

303,789 users

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

ColorZilla by Alex Sirota

Rated 4 out of 5 stars 382 reviews

176,337 users

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

Wappalyzer by Elbert Alias

Rated 4 out of 5 stars 115 reviews

63,885 users

Wappalyzer is a browser extension that identifies software on websites.

Live HTTP Headers by Daniel Savard, Nikolas Co

Rated 4 out of 5 stars 172 reviews

91,556 users

View HTTP headers of a page and while browsing.

JSONView by Ben Hollis

Rated 5 out of 5 stars 177 reviews

88,600 users

View JSON documents in the browser.

YSlow by YSlow

Rated 3 out of 5 stars 221 reviews

40,238 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.

Tilt 3D by Victor Porof, robcee

Rated 4 out of 5 stars 42 reviews

15,330 users

A WebGL-based 3D visualization of a webpage.

Firefox OS 1.1 Simulator by Myk Melez, J. Ryan Stinnett

Firefox OS Simulator is a test environment for Firefox OS. Use it to test your apps in a Firefox OS-like environment that looks and feels like a mobile phone. After installing it, go to Web Developer > Firefox OS Simulator to access its features.

Open With by Geoff Lankow

Rated 4 out of 5 stars 160 reviews

19,232 users

Quickly test out your web pages in Internet Explorer, Chrome, Safari, or Opera. Open With opens the current page in your other browsers with just one click. Add Open With to your menus, toolbars and developer toolbox today!

CSS Usage by Teun van Eijsden

Rated 4 out of 5 stars 40 reviews

10,572 users

Firebug extension to view which CSS rules are actually used.

Firepicker by thedarkone2

Rated 5 out of 5 stars 58 reviews

8,518 users

Simple color picker plugin for Firebug.

Save Complete by warhammerkid

Rated 4 out of 5 stars 70 reviews

24 users

Saves a webpage completely, providing a better alternative to the flawed built-in save functionality of Firefox.

Console² by Philip Chee, zeniko

Rated 5 out of 5 stars 49 reviews

3,688 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.

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