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Illuminations is made by Steven Roussey, one of the volunteer developers of Firebug, so it should be no surprise that it is designed to work with it:

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Requires Firefox & Firebug

Illuminations for Developers

A tool to help you develop web applications by investing Firebug with the knowledge of your JavaScript framework and your workflow with it.

Now Shipping for Sencha Inc.'s ExtJS frameworks.

ExtJS versions 2.x, 3.x, 4.x

Beta support for Dojo Toolkit, SproutCore, qooxdoo, YUI3, Google Closure Library, and jQueryUI.

Read the Introduction on the Blog...

v1.1.13 brings side panel search and a Japanese translation -- 9 May 2012

I'm really excited to see tools which try to help the developer piece together a coherent story about the state of their web apps, instead of just burying them in a pile of data. I think the natural next step is to follow this evolution from straight data to... interpreted data, data that anticipates the questions web developers are trying to answer. I think Illuminations really nails that when it comes to web toolkit users.—Johnathan Nightingale, Director of Firefox Development, Mozilla

Illuminations saves Sencha developers time and effort in understanding and debugging complex web applications, making it an invaluable tool for every development.—Abraham Elias, CEO, Sencha Inc.

Commercial License	Personal License
For companies and organizations	For individual developers
$50 includes 1yr $25/yr thereafter	$25 includes 1yr $12/yr thereafter
Get Started	Get Started