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No video with supported format and MIME type found." on videos native interface can play · Issue #1590 · nolanlawson/pinafore · GitHub
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Firefox 35 beta arrives with easier Hello calling, MP4 playback on Mac, and Android download manager support | VentureBeat
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Firefox 35 includes streamlined Hello video chat, MP4 support on Mac, easier social network sharing | TechSpot
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