privacy controls in social API? (Score 3, Insightful)

Will Mozilla provide isolation for its social apps from the rest of the tabs, when requested by the user; i.e providing cintrols on what browsing data, session, cookies and history the social API will be able to access, or will this make it more difficult for users to wall social apps than it is to do so with web-based social apps using plug-ins as many now do?