From the Mozilla Add-ons Blog:
Firefox users love Personas. They’re a fun and easy way to customize Firefox and make it your own. But in talking with new users, we’ve learned that they are often confused by the name and don’t quite get that Personas are just another way to theme your browser. And more often than not, when a Firefox user describes the look of their browser, they use words like “wallpapers” or “backgrounds” instead of the proper name Personas.
We’ve come up with several options for a new name and want to know what you think. Please take a look at the poll below and submit your vote by Wednesday, February 8. Your choice will play a big role in which name we choose, as well as other factors including the word’s meaning in other cultures and languages.