In the mirror universe, the Ferengi were a space faring humanoid species native to the planet Ferenginar in the Alpha Quadrant. The Ferengi worshiped a divine being known as the Blessed Exchequer. (DS9 - Mirror Universe novel: Saturn's Children) They had made first contact with the Klingons prior to 2282. (TOS - Mirror Universe novel: The Sorrows of Empire)