Your own only at this point it seems. So nostr:nprofile1qqs9pk20ctv9srrg9vr354p03v0rrgsqkpggh2u45va77zz4mu5p6ccytv72v would have to add it. As far as i know the browser extensions don't allow for login-with-npub. That would have been a hack to get what you are looking for.