Firefox 57.0.2 (64bit) on Windows 10

Hi! I have metabase 0.27 running on an ubuntu server. When I connect from firefox 57.0.1 on the Ubuntu server (i.e. localhost) its fine. When I use Opera from my office PC, its fine. But when I use Firefox on my office PC, I seem to be missing some screen functionality. The area in red on the attached screenshot is just not there (I’ve just upgraded from v 0.26.x and it was fine before).