Comment 1 for bug 189014

Please add ability to create and save APNGs. The APNG standard wasn't approved because the the standards committee thought they didn't have enough features. Anything designed by committee is usually cumbersome and big. Look at the thing that they did approve (MNG).
  APNGs are better quality than animated GIFs and not proprietary. As people use them, more browsers will support them.
  Please don't spent time on accommodating animated GIFs. - Thanks.