Latest Debian 6 user agents:

User Agent	Browser	Device
Mozilla/5.0 (X11; U; Linux sparc64; es-PY; rv:5.0) Gecko/20100101 IceCat/5.0 (like Firefox/5.0; Debian-6.0.1)	IceCat 5	Unknown
Mozilla/5.0 (X11; U; Linux sparc64; en-US; rv:5.0) Gecko/20100101 IceCat/5.0 (like Firefox/5.0; Debian-6.0.1)	IceCat 5	Unknown