[dave4420]

What’s the problem you’re trying to solve?

[superchroma]

Solve the issue of untrusted add-ons taking advantage of ill-gotten privileges to steal user information, by offering a different dimension of security than has been previously available?

[dave4420]

So on the one hand, why wouldn’t this also cover, say, webmail sites?

On the other hand, how does preventing me from using an extension when finding out when my bins are going to get emptied over Xmas protect me?