I would recommend everybody in this thread to also upvote this feature request, which deals with enabling push notifications settings directly on account creation:https://connect.mozilla.org/t5/ideas/ask-to-enable-push-during-setup-default-to-push/id...
From my (off-topic) comment on this GitHub issue (I basically agree):Maybe one could recommend the user, during the account setup or transfer from Thunderbird desktop, to enable push notifications for the inbox folder?Of course, only when the server ...