Firefox 17 - New Social API designed for Facebook to help safeguard privacy

Firefox 17 beta offers a new API that interacts with Facebook directly and may help reduce infections associated with fake email alerts.  The first social network implementation will be for Facebook.

https://blog.mozilla.org/privacy/2012/10/22/being-social-with-privacy-in-mind/

With our latest beta, we’ve started testing a new social API right inside Firefox. This API provides an open, Web-based infrastructure that allows users to connect Firefox with their favorite social networks, creating an experience that’s social, still feels like Firefox, and most importantly still respects our privacy principles. The first implementer of our new social API is Facebook, and we expect many more implementations in the coming months.  One of the social API’s key requirements is that data is only sent to a social network when the user wants to send it. The new social features are completely opt-in and are disabled until you visit a social network site and decide to turn things on. Once enabled, Firefox loads several pages from your social network over secure connections.