I've been thinking about this for some time now. If the browser is really to become the common platform for most applications in the future, shouldn't they be a

I've been thinking about this for some time now. If the browser is really to become the common platform for most applications in the future, shouldn't they be able to declare whatever interaction they desire? There are long articles on the internet why the right click is a suboptimal way to interact with anything on-screen, but users who need the contextual menu already learnt it. Can't we make those menus more useful?