URL: https://www.pornhub.com/view_video.php?viewkey=ph59a51f5d03034

Browser / Version: Firefox Mobile 56.0
Operating System: Android 7.0
Tested Another Browser: Yes

Problem type: Video or audio doesn't play
Description: I can hear the audio but no video displays. It happens with every vr I try to stream. LG G5
Steps to Reproduce:

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