For set in mildew stains on fabric, mix cup household hydrogen peroxide with cup Clorox 2 powder. Stir into a paste. Apply to mildew stains. Let sit for hours and rinse well. If there are still stains visible, repeat till gone.
For cleaning? I tried it, as this advises, w/ a little vinegar, for my oven glass, and it did absolutely nothing. Use some soapy water and the kind of blade one uses for scraping paint off a window (carefully).