Hi DerekJ
This used to be possible on my android tablets until a recent change to the Chrome browser. I could slide the address bar out of sight but I find it no longer works on any web address that is only "http" and not "https", even if the "http" part of the address is not displayed. It appears this now fails some security test to allow the use of Full Screen. I can't hide the address bar on the Atom Grid screens either now.
Regards
Alan