I am using Firefox 81.0.1 (64 bits) for Windows 10. After I open Firefox I get two instance of the primary password rather than one. This does not happen immediately. I have roughly 20 tabs pinned, so quite a number of websites are opened during startup. My guess is that this takes such an amount of time, Firefox is simply triggered to open another window. Still I think this behaviour is odd and it has happened to me before in a version where we still had the master password. This sounds disengaged, but I never bothered to report this behaviour until now. I am not certain whether this is a feature or a bug. I could remove a lot of pinned tabs, but I rather would not. These are websites/services I all use once or twice a day during work, sometimes even more depending on the activity I am engaged in.