Uploading files would become a chore, as you'd always have to copy them over from your actual Home-directory to that Firefox-user's, but yeah, it would add anot

Uploading files would become a chore, as you'd always have to copy them over from your actual Home-directory to that Firefox-user's, but yeah, it would add another thick layer that attackers would have to get through. Mind that Firefox is also getting sandboxed tabs as we speak, so yet another layer that attackers would have to get through, which wasn't in place at the time of this attack.