Latest IceDragon 18 user agents:

User Agent	Platform	Device
Mozilla/5.0 (Windows NT 6.1; WOW64; rv:17.0) Gecko/20100101 Firefox/17.0 IceDragon/18.0.1.0	Windows 7	Unknown
Mozilla/5.0 (Windows NT 5.1; rv:17.0) Gecko/20100101 Firefox/17.0 IceDragon/18.0.1.0	Windows XP	Unknown