If this can't be stopped, I will find a different browser and I've put up with this for years. I'm on 90.0.2 (released on 8/24/21) and keep receiving notifications to update to the latest browser less than a week later? Come on... am I missing something?

The popup notifications are "glued" to the right-corner of everything FF, including blocking me from logging out of my email account; this is stupid or malware.