"Firefox 3 has been out for two weeks now, so get with the
program: It's time to hack it. The newest version of Mozilla's
browser has plenty of new features, including the site
identification button, the Bookmarks Library and what has become
known as the 'Awesome Bar'--and I'll show you how to hack them
"You can also force the browser to use Gmail for mailto: links,
discover a hidden 'Easter egg' and more. So fire up your browser
and get ready to teach it some new tricks..."