Mobile/Projects/Profile support

Tracking

Extremely useful for when one device is used by more than one person (eg families, villagers, girlfriends/boyfriends, etc)
Expected more uptake in emerging markets where device sharing is more the norm

Log in with your persona ID and your Firefox browser settings, bookmarks, and history are immediately available
Can support a maximum of X profiles
Profile should remain intact no matter which device you are logged in to (phone, desktop, tablet)

As a user, I want to log into Firefox with my profile and all my settings, history, and bookmarks are available for me to use, so I don't have to customise each browser on multiple devices
As a user, I want to preserve my own settings without having the data of user others change my awesomebar relevance, so that my browsing experience remains my own personal one
As a user, I want to be able to hide my browsing history from others when I allow my device to be shared, so that I preserve my privacy and integrity of data

TBD