Before Firefox 57 the Android top bar (battery, time, connection status, etc) disappeared. Now it doesn't and it takes an annoying amount of space away from the web pages. Maybe there was a full screen option that I can't find anymore, or I had an add on that doesn't work with the new web extensions API, but I can't find it disabled in the add ons list now. There is a third option: maybe I didn't notice that bad before because it was black as in any other app and browser. It's white now and that makes it much more visible. Is there any way to hide that to bar or at least make it black? Thanks.