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Embedded mp4 videos don't work with Firefox #1749

Answered by rowanc1
lorenzo-rovigatti asked this question in Q&A
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@lorenzo-rovigatti if an MP4 video isn't playing in Firefox, I strongly suspect that the codec used in the video is not supported by the browser (like a newer version of H.265 mp4 codec), which could be due to an outdated codec or a codec that Firefox simply doesn't recognize; to fix this, you might need to re-encode the video using a compatible codec like H.264, check for Firefox updates, or investigate if any extensions are interfering with playback.

Hopefully that helps.

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Converted from issue

This discussion was converted from issue #1587 on January 09, 2025 21:47.