ffmpeg - Mozilla Firefox 36 has problems playing my h264 MP4 files - Stack Overflow
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Trying to upload an mp4 video to reddit - Do I need a plugin or something? : r/firefox
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How Can You Fix Videos Not Playing in Firefox
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gstreamer - How do I get HTML5 h.264 Video working on Firefox? - Ask Ubuntu
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Browser Video: Codecs, Formats & Hardware Acceleration • Helge Klein
Videos won't play in Nightly | Firefox Support Forum | Mozilla Support
h264ify – Get this Extension for 🦊 Firefox (en-US)
Problems with H.264 codecs in firefox · Issue #325 · collab-project/videojs-record · GitHub
Video DownloadHelper 7.7.0a2 for Firefox
H264 codecs on Chromium - Fedora Discussion
Certain MP4 Videos Breaking - Showing No Codec Error, or Black Screen (Has Screenshots) : r/firefox
