I'm experiencing a problem with Notifications and Activity stream. When I log in, I don't see any notifications and this functionality doesn't work for the most of the day. Then, suddenly, it's being brought to life by some mysterious force only to stop working the day after, etc., etc. This situation continues for the last 10 days or so. I'm using Firefox 45.6.0.
It's unnecessary to emphasize that without Notifications, it's impossible to work on the platform.
Thanks for checking it out...
P.S. I'll have a problem even to follow feedback on this very thread :(