To try the thousands of add-ons available here, download Mozilla Firefox, a fast, free way to surf the Web!Close
Welcome to Firefox Add-ons.
Choose from thousands of extra features and styles to make Firefox your own.Close
Rated 1 out of 5 stars
One star for supporting an explicit violation of the PNG specification.
(PNG was designed with the knowledge of how much trouble it was to detect whether a GIF was animated. APNG ignores that and also ignores the parts of the PNG spec that basically say "A PNG contains a single frame. Multi-frame PNGs are to be considered broken."