If I click on a picture on Facebook now it comes up really small. Before the update I could click on a pick and it would come up full screen size. Can someone help me get it so the pics come up big again. Thank you
Haven't seen that problem, but I'm running a beta version of the next version Facebook app at the moment. I would try uninstalling and reinstalling the app.
Before you ask "how do I get a copy of that beta version", don't. It's a pretty rough beta at the moment.
Which browser are you using? And what URL are you using?
I just tried the Chrome browser and the picture show mostly full size in my News Feed. If I press the pictures, they are then shown mostly fullsize. Underneath the pictures is a View Full Size "button".
Can't say why things changed for you, but I would first try the Facebook app and then different browsers.