Aza is currently the Creative Lead for Firefox. Previously he was Head of User Experience for Mozilla Labs.

Aza gave his first talk on user interface at age 10 and got hooked. At 17, he was talking and consulting internationally; at 19, he coauthored a physics textbook because he was too young to buy alcohol; at 21, he started drinking alcohol and co-founded Humanized. Two years later, Aza founded Songza.com, a minimalist music search engine that had over a million song plays in it's first week. In another life, Aza has done Dark Matter research at both Tokyo University and the University of Chicago, from where he graduated with honors in math and physics.