To celebrate the world record for Firefox 3, I established this new site together with Gradient iCool 1.0.2 for Firefox 3. You can download it now on the Firefox Addons Site and Softpedia. This new theme uses a Vista-native font i.e. Segoe UI. Segoe UI can be made available upon installing Windows Live Mail or Windows Vista and a lot of different ways (see http://en.wikipedia.org/wiki/Segoe_UI#Availability). I was granted the "100% Clean" Award by Softpedia (see this page). It's tested on Mac OS by the Softpedia team. The preview is shown below.