If you are not going to list it on the store page. Mozilla has a process thst allow you to sign add-on automatically unlisted without review(you do still need a free account).
On the other side. The chrome store starts to behave badly and ban extensions they don't like for random reason after they implement that.
About mozilla, i don't know. will they eventually be like that, or they won't?
Now, some distros like Debian have enough political power to get Mozilla to allow them to put Firefox branding on their altered user-freedoms-respecting repo editions of FF release. But most don't. So the only way to use actual release FF is to go outside your repos and use the unbranded version. Possible, of course, but tedious.