Notification.permission always return ‘denied’ on firefox [duplicate]

I have a problem with Push notifications only on Firefox.
It always return ‘denied’ when I am checking the permissions, even though they are granted and firefox shows me next to url tab that they are granted.

I have this problem on production (https).
On chrome and safari it works fine.
Have you ran on that issue and have a solution ?

PS. For example on old Firefox 79 it works perfectly fine.