Most of the work that the Chrome folks have been doing on web extensions recently has specifically been to make finer-grained APIs to do the sorts of things ext

Most of the work that the Chrome folks have been doing on web extensions recently has specifically been to make finer-grained APIs to do the sorts of things extensions do without giving them full access to edit pages etc. For instance, see the new "Declarative Net Request" API, which allows you to specify certain transformations on requests in JSON, like blocking them if they match a regex, without knowing what the request is: https://blog.chromium.org/2019/06/web-request-and-declarative-net-request.html https://blog.chromium.org/2019/06/web-request-and-declarativ... In theory, this allows you to implement things like ad blockers without having high levels of access to the user's browsing behavior. In practice, it's very hard to make these APIs complete enough.