https://russian.rt.com/article/302471-vladimir-putin-sdelal-zamechanie-dmitriyu-rogozinu-za This brauser does not support video
I can repro this bug and the error message is "This browser does not support video playback."
Fennec nightly *cannot* play it but Firefox desktop nightly *can* play it...
The mimetype of the video tag in comment 0 is "application/x-mpegurl" which is HLS. It seems https://russian.rt.com/ uses HLS on mobile and Firefox for Android doesn't support it. https://developer.apple.com/library/ios/documentation/NetworkingInternet/Conceptual/StreamingMediaGuide/DeployingHTTPLiveStreaming/DeployingHTTPLiveStreaming.html
Status: NEW → RESOLVED
Last Resolved: 2 years ago
Resolution: --- → DUPLICATE
Duplicate of bug: 577084
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