I'm not sure what this feature is called in Firefox lingo... On my Mac, Firefox will remember which windows belong on which virtual desktops, and so open up with them on the correct (well, not exactly, but sorta) virtual desktops after a restart of the app. On my new Windows 10 installation, though, Firefox has learned that a specific window was moved to virtual desktop 2, and now INSISTS that that window should always open on the desktop after a restart, regardless of on which desktop that window was actually placed when Firefox was shut down. Is there a quick fix for this issue, or at least some way to disable this feature? Thanks :)