Debugging CSS, AJAX and DOM with Firebug

prostoalex writes "Joe Hewitt of Parakey in the latest Dr. Dobb's Journal provides a detailed overview of the Firebug extension for Firefox: 'Firebug breaks the page down into a set of tabs that depict its most important aspects — HTML, CSS, JavaScript, the DOM, network activity, and a console for errors and log messages. No tab is an island; Firebug lets you browse code just as you browse the Web by presenting objects as hyperlinks that can take you from one view to another.'"