Since you are in a warm climate, hose off the windows to remove the looser gunk. Use a vinegar based window cleaner with several cloth towels. Then use a spray wax to coat the window(s).
For the canvas, use a mold/mildew remover. let is sit for 5-10 minutes but don't let it dry. A soft bristle brush really help remove the stuff on the canvas.
If you have a power washer, do not use the highest pressure nozzle and do not spray the stitching.