I'm a heavy user of the virtual desktop feature in Windows 10.
Whenever I restart Firefox it forgets which window was on which virtual desktop. Every window opens on whichever desktop I'm currently viewing. This is particularly frustrating because I keep a lot of Firefox windows open, and even though I don't restart very often, moving them all to their respective desktops is rather a tedious chore.
I don't know if the issue lies with Windows 10 or Firefox but so far this misbehavior is exclusive to Firefox. Every other browser (Chrome, Brave, Vivaldi) keeps track of its windows with regard to virtual desktops. Not to mention essentially every other piece of software.
Firefox behaves as expected on Windows 11 .
