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Firefox doesn't support H.265/HEVC.

bridging.mov and examples.mp4 are working as they are H.264/AVC, the other videos are H.265/HEVC

None of the videos played for me in Safari 16. =(

None of the MP4 videos play in Firefox. The MOV videos play fine.

All the videos play in Safari. I have not tried Chrome.

good to know! seems that I'm using encodings for those which Firefox does not support https://stackoverflow.com/questions/73855321/why-wont-mp4-vi...

The same thing seems to apply for Zoom background videos.