Thanks for your rating!
Can you ensure the domain match the site?
if it's missing things like "www" for example it fails to match.

you can have a look in debug going in:
enter in url bar: about:debugging#/runtime/this-firefox
click inspect on smart tab mute + and go in "console".

Do some notifications and unmute or whatever ans you should find the actual domain name.

Tell me if it solves this :)