Q:

How to close browser entirely using JavaScript

I want to close my full browser using JavaScript. 
I used 
window.close()

and also
self.close()

and also 
 var win = window.open('', '_self');
 window.close();
 win.close();

and also 
var win = window.open('', '_parent');
win.close();

None of these give me any benefit in this regard.
Is there anything else in JavaScript which will help me to close my browser instead of only a tab and also will work in all browser?

A:

Just to let you know, you can only close windows with Javascript that were opened by it

