Furon was the homeworld of the Furons and heart of the Furon Empire.
Furon had low gravity and was said to be arid, which explained the development of Furon Jetpacks and how Furon Technology shorted out when it was in water.
It culd also be assumed that Furon had air that was similar to Earth's, as seen when Crypto was able to breathe air during his time on Earth, but wore an airtight helmet while on Solaris. While Furon was still habitable to Humans, a human would die stranded on it away from water. It was also unknown what Furon looked like from space.