Firefox CSD - Restore button is the same as maximize

Created by: codic12

So, the restore button (that shows up when maximized), usually between minimize and close, is different then the maximize button (when unmaximized) in normal GTK3+ apps using headerbar/csd. but in firefox the maximize and restore buttons are same if you disable "Title Bar" in the customize section. This makes me have to use normal titlebar instead of csd (since I love consistency), which, in this case, is a waste of space