Looking for a video download extension for Safari or Chrome / Opera / Firefox? VideoDuke for Mac; Airy; Elmedia Player; Video Keeper; Video convert the downloaded videos tom MP4 or MP3, depending on your needs. Paste the URL in Y2Mate or simply add “pp” after “youtube” in the link and you. We have an MP4 video on our site; it plays fine in IE9+, Firefox, Chrome, and Chrome on mac. However, on Safari, the video doesn't play at all. VLC Media player is not only a great tool for saving online audio streams, but its In that option select “Video – H.264 + MP3 (MP4)”. Enter the video URL. None of these tutorial images resemble what I see on my Mac in the current VLC.