Firebug Tutorial: Introduction to Firebug | CSS, JavaScript and XHTML Explained

Added note to Yahoo! Mail crashing Firefox when you have Firebug installed: According to the team of engineers at Yahoo!, this issue has to do with the number of iFrames in the Web 2.0 version. So, while it is a Firebug issue — Firebug can’t handle so man

www.evotech.net