At its F8 conference for developers, Facebook has previewed an "Anonymous Logon" feature.
The social network says it is now testing the feature with a select number of developers (companies that make apps) and will soon expand the pilot.
"Last year, people logged into apps and websites with Facebook Login over 10 billion times, giving them a fast and easy way to sign in to apps without having to remember separate usernames and passwords," the company says in a blog post.
The new Anonymous Logon feature will let a Facebook user share no information with the maker of an app, or "uncheck categories of information, one by one. For example, if someone wants to share their email address with an app, but not their birthday, they can make that choice with a couple taps."
There's also the promise of tighter controls.
"We’ll soon start reviewing new apps that use Facebook Login to help ensure higher quality apps are available to people – apps that ask for the information they actually need and aren’t posting anything back to Facebook without people’s explicit permission," the company says.
The anonymous logon feature will go live over the next few months.