Mold is easily removed by using vinegar. Spray some vinegar in it and let it stand for a while, then wash it with fresh water and scrub also while cleaning it use sponge to scrub it. Don't forget to wear mask and gloves.
Mold normally grows in damp areas. In order to stop the growth, you should remove all the moisture. To remove mold from the furniture, pour a little of denatured alcohol on the furniture and rub down the wooden surface. Once the alcohol is dry, spray with disinfectant.