The Prospector team has an experimental interface design that tries to
inform users that they're in control of their data, let users see and
control what they share, and help users understand the effects of
sharing. Feedback is welcome for the high level parts of the design,
and we'll get into the individual details in later posts.
https://blog.mozilla.org/labs/2012/11/designs-for-user-controlled-shared-data/
Ed