I have a video (m4v have tried mp4) that will not play when using Firefox (570b12), this use to work. It still works using Microsoft Edge. This problem has been reported to Mozilla.
Without more info we can neither help nor even say if it is a Zenphoto problem. You need the class-video plugin and a media player plugin to use mp4 with Zenphoto.
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Without more info we can neither help nor even say if it is a Zenphoto problem. You need the class-video plugin and a media player plugin to use mp4 with Zenphoto.