The Simpsons Movie Firefox theme actually already being released by 20th century Fox for all the Simpsons fans. Now you can see all the yellow donut in your Firefox browser. Overall this is a good theme release to promote such movie and Firefox also. Take more look at screenshots below.

I also already make a post about The Simpsons Avatar, where you can upload your own picture and the site will transform you to a Simpsons Simpsons avatar. Check it out!!!

Grab the download here