Option to Put Browser in Fullscreen

[AntumDeluge]

💡 Describe your idea

For playing on mobile browsers, it might be useful to have an option that puts the browser in fullscreen mode (hiding address bar, navigation buttons, etc.) if possible. This would be browser dependent.

An example of how it could work in mobile Chrome is by running the script javascript: (function(){document.querySelector("body").requestFullscreen();})(); from the address bar (does not work with mobile Firefox).

🔬 Motivation

Make better use of screen area in mobile browsers.