Facebook wants notifications to become much more than a perfunctory list of recent behavior, events and invitations.

Mashable has learned the social network is quietly testing and rolling out a robust new notifications tab that pulls content from across the entire site and serves it up in one central place. Facebook, which confirmed the development to Mashable, plans to introduce the new tab to mobile users across the U.S. first, then worldwide, although it has yet to pin down exact timing.

“We are testing an updated Notifications tab that adds additional, relevant content about everything that might be helpful to know on a particular day,” a Facebook spokesperson told Mashable. Read more…

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