I somehow managed to loose the ability of all my programs to resize on Ubuntu. Not sure what I did, but I thought I saw a popup open and being blocked in Firefox and after that all my programms opening like this screenshot:
I can neither double click to expand nor close a program via the top bar because it's not there anymore.
Question:
Being a ubuntu beginner, what happened and more importantly, how do I switch back to normal programm size?
Thanks!
