Did you download the firefox3 on June 17 ? Did you like the robot's greeting "We have come to visit you in peace and with goodwill!" easter egg :). Sci-fi geeks will recognize the reference to nikto in the page title right away.
Here is something to add icing to the cake, Sitepoint released a Firefox 3 Revealed ebook to go with all the excitement. I hope this ebook will guide you in master the new features of the firefox3 browser. Happy surfing !!!