Jewel of the Firelord, Hood of Hungering Darkness, and Crown of Eternal tell me the Jewel of the Firelord works with warlocks green fire.
I am warming (no pun intended) to the jewel of the firelord, though. Reply I bought the fire horns for my druid too, firey druid tauren:D. Reply.
This cosmetic epic goes in the "Head" slot. It is sold in the In-Game Store. In the Cosmetic Items category. Added in World of Warcraft: Mists of Pandaria.