Hello, Until recently, I was able to double tap the browser bar and have the window expand to fill the screen just short of "full screen" mode so I could still see the menu/task bar. I remember I did need to adjust settings for this somewhere but can no longer figure it out now that it is not functioning to this spec any more. I did check '''about:config''' to see if "apz.allow_double_tap_zooming" was set to TRUE and it is, by following this suggestion below: https://support.mozilla.org/en-US/questions/1317872