I think we will end up with something like permissions grants (including granular JS APIs available for the website, as we do for the location, camera APIs etc, at the moment) per website and convenient tools built-in browser that allow you create/re-use patterns so you don't actually interrupted by this strictness too much.
Yeah, sounds a bit overwhelming for users, but my point here us that we would need appropriate tooling to be offered to end users so they are not get lost (quickly lol).
