Make sure only Windows users on Windows7+ are trying to use Tor Browser based on ESR60
The miminum requirement for Firefox 60 is Windows 7 (which means there is no Windows XP and no Windows Vista anymore supported). We should make sure that
a) Tor Browser users on Windows XP and Windows Vista are not updated to the new Tor Browser (ideally they would get to know what is going on at least once).
b) Tor Browser users on Windows XP and Windows Vista are not trying to install Tor Browser 8 in the first place.