Firejelly
this was a Yuuzhan Vong weapon, first used during the Second Battle of Coruscant. The sticky jelly was highly flammable, and stuck virtually everything it came into contact with. This caused fires to spread rapidly, as the firejelly at the source of the fire remained in contact with the surface. After the hostilities between the Yuuzhan Vong and the Galactic Alliance were resolved, and the Yuuzhan Vong were allowed to live on the planet Zonama Sekot, they found that firejelly and many other bio-engineered weapons simply reverted to their animal forms and fled into the forests. This was one way in which Sekot forced the Yuuzhan Vong to give up their lust for war and embrace a more enlightened existence.