On Thunderbird, the Personas menu item is called "Personas for Firefox", which doesn't make much sense. We should call it "Personas for Thunderbird" or simply "Personas". cbeard: is "Personas" an option, or must it be "Personas for Thunderbird"?
catching up this bug. myk and i discussed this offline and i agreed that "Personas" would be a more appropriate name for the extension, and subsequently it's interface items. this change was made and incorporate into 1.2. http://hg.mozilla.org/labs/personas/rev/102962577e19