The social network is making some of your friends’ posts look like chat windows in your desktop browser.
Facebook is testing pop-up posts, similar to how chat windows look on your browser.
Facebook likes chat windows so much, it’s trying them out on your friends’ posts too.
The social network is testing out a feature on its desktop site that pushes certain posts to the bottom edge of your web browser, similar to what it does when you get an instant message from a Facebook friend. Gmail does the same thing with instant messages and its email composer.
The pop-out Facebook posts have a text field that lets you comment. There’s also an option to either see the full post or hide it.
