When I use Opera on my mac I always have it full screen (as with every other app) so I can easily move between them. Until recently this worked fine, but for the past couple days I've been unable to make videos (via Youtube, Netflix etc) full screen when the Opera window is full screen. When I try to, the tabs, URL bar, bookmarks etc are all still accessible at the top. If I minimise Opera and just have it open as a window on my desktop, full screen works. This was never a problem until recently, and I can't seem to find a fix. Anyone any ideas?