I am using a web application that can be run in different web browsers (nothing new).

What I try
- To open the url in a browser (Chrome or FF) in full screen mode. Do not show the url, not the edge of the frame, because it reduces the size of the content of the page. I tried to find add-ons for FF and Chrome to put them in full-screen mode, but I couldn't find them.
- If possible, to create a shortcut on the desktop to open the URL as if it were an application.

I see that it is possible with Android Studio. But I would like to know if there is an easier way. I do not really need to convert the entire website to an application. Only to open the url in the browser in full screen mode.