Facebook started doing this latest in a series of hateful things a couple of days ago (on the desktop/browser version, not the app, which I don't use):
I'll be scrolling down some page (usually my news feed), and if I click on a "Like" or on some other kind of link, it pops me back up to the top of the page and, of course, refreshes it so I lose wherever the HELL I was. The "Like" takes effect, but I'd have to go looking for that post if I needed to see it again. I'm curious as to whether it's "just me" or if anyone else has experienced this.