We have received some questions as to how the Personas Plus extension is different from the built-in functionality which comes with Firefox 3.6 and newer. You do not need the extension to be able to preview and wear Personas. However, with the extension you can ‘bookmark’ your favorite Personas as well as setup for Personas to be switched at a given time, or each time Firefox starts and to choose from Personas in your favorites, a particular category or a random selection. Personas Plus will also add the ‘Fox Mask’ icon in your add-ons bar where you can access your Personas settings.