Mozilla Web Developer Extension

Lately I've been working on a redesign of my main publishing site NoEnd Press, using CSS. I bought the excellent book Professional CSS Cascading Style Sheets for Web Designto help me get a better grip on CSS. This book cost me 55€ here in Barcelona, but it's worth it, probably one of the best CSS books around. One of the best tools I've found so far, thanks to the book, is the the Mozilla Web Developer Extension from Chris Pederick. If you use Mozilla/Firefox (and you SHOULD), this extension is a must for any Web Developer. It adds a menu and toolbar to Mozilla with some seriously useful features (screenshot above).