Facebook has a new and improved login experience and is aiming to make it faster and easier to sign in to your apps. It doesn't look much different, but there are a couple of changes under the hood.

The login, is 31 percent faster to begin with. The upgrade has to do with permissions, and in the past, it wasn't clear how to keep an app from posting your stuff to your News Feed but now there's a second screen that asks if you want to give it that permission.

81 percent of iOS apps and 62 percent of Android apps use Facebook Login. It's the largest online credential yet. [Facebook]