Facebook announced changes to logins. With the Facebook login to apps, the new version gives people the option to pick and choose what information apps get and what information gets shared back to Facebook. This will help preserve privacy when using Facebook logins on other websites and in apps.
You can also login anonymously. This login lets people log in to apps without having to remember usernames and passwords, but it doesn’t share personal information from Facebook. So far, Anonymous Login is only set up in a few places, but its use should increase over time.
Also changing in the coming weeks will be a new app control dashboard inside Facebook’s settings. Using the new controls, people can see a list of apps they use, manage specific permissions, or remove apps entirely.