I am looking at a web page which has overwritten the right-click button so to display its own popup HTML element.
This prevents me from using Chrome Developer Tools to
Just Press F12
Go to Sources
There you will find Enable right click. Click on it.
Under this you will find web_accessible_resource.
Open it in this you will find index.js.
Press Ctrl + F and search for disabelRightClick. There you will find
var disableRightClick = false;
this line. Replace this line with
var disableRightClick = true;
Just press Ctrl + s
!! Done. Now your right click is enabled !!