Windex Original glass cleaner. Trusted by generations for its famous streak-free shine, Windex Original is perfect for cleaning windows, mirrors, glass shower doors, glass top stoves and more. Thanks to its formulation with Ammonia-D, Windex Original starts working on fingerprints, dirt and other messes even before you wipe. Simply pour into your existing Windex spray bottle and enjoy a hassle-free and effective cleaning experience. Trust Windex to leave your glass surfaces crystal clear and sparkling like never before.