Mozilla seems to have hit a sweet spot with Personas, the theme engine add-on for Firefox and Thunderbird. While the browser had customization options before and themes support from the early stages, most people weren’t using them, either because they found it complicated or found the selection of themes was rather lacking. In just several months though, 10 million people have customized their browsers with Personas and the number of available designs is staggering.

“Since Personas was launched earlier this year, over 10 million people around the globe have chosen to personalize their Firefox by downloading Personas. Nearly 35,000 designs were contributed from artists at all levels of experience from all parts of the world (over 1,000 designs / week). Nearly 40 affinity brands, including Harry Potter, Bob Marley, Lady Gaga, and Greenpeace have added their content to the gallery. Localization community has diligently translated the add-on into over 25 languages; Personas website will be localized by the end of the year,” Mozilla’s Suneel Gupta and Myk Melez listed some of the team’s achievements. >