I have two cats. One is deaf. The one who can hear will politely present herself when she hears me open a can of tuna. After a few more minutes, the deaf cat will wake up from being dead asleep (the sleep of a deaf cat is on another level) and follow her nose to the kitchen. It always impresses me.
I had this when using my corporate VPN. Disconnected and still got it. I thought maybe it was a bug that had to do with Firefox.
A few minutes later I refreshed and it was all fine.