[dotproto]

Both CWS (Chrome) and AMO (Firefox) supports this. It's part of Chrome's One Stop Support[1] form and Forefox's developer hub UI.

At the moment I don't believe any browser has features that notify end users of ownership changes.

[1]: https://support.google.com/chrome_webstore/contact/one_stop_... [2]: https://extensionworkshop.com/documentation/publish/add-on-o....