Firebug - must have for JavaScript/Web developers

If you are a JavaScript developer or create your web-pages with CSS, then the Firefox add-on Firebug is a must have for you!

There is a new beta available, with lot of features, compared to the one hosted by the Firefox extension web-site.

Never heard of Firebug? Check out Dr. Dobb's - AJAX Debugging with Firebug, there is also a good feature overview on the Firebug web-site.

Two things I want to highlight:

• The JavaScript debugger, with breakpoints (also conditional), variable watching, ...
• The inspect feature, where you can click on any element on your HTML page and it will show you the DOM tree, the CSS infos, ...
• But there so many more nice features, just look around...

Couldn't imagine doing my ApexLib Framework development without that tool!