Justice League of America Movie

J'onzz is a native of the planet Mars, also known as Ma'aleca'andra in his native tongue. As originally depicted, J'onn had the powers of intangibility, invisibility, telepathy and shape-shifting. As the years progressed he developed the powers of flight, "Martian vision" (heat vision or X-ray vision), super-strength, super-speed and super-stamina. His usual public appearance is as a tall, hairless, green-skinned humanoid with a pronounced brow. He is highly sensitive to fire, which weakens him and prevents him from being able to use his powers at all. In some stories his weakness to fire is portrayed as a physical weakness, and in others it is a psychological weakness. Source