Browser / Version
Firefox Preview Nightly 191125 (🦎: 72.0a1-20191119043902)

Operating System
Samsung Galaxy S8 (Android 9) - 1440 x 2960 pixels, 18.5:9 ratio (~570 ppi density)

Steps to reproduce:

1. Navigate to: https://www.bbc.com/news/av/technology-50514026/tesla-cybertruck-elon-musk-s-new-vehicle-smashed-during-demo
2. Play the video.

Expected Behavior:
The video is played.

Actual Behavior:
An infinite spinner is displayed.

Notes:

1. Screenshot attached.
2. Disabling ETP fixes the issue.

See also https://github.com/mozilla-mobile/android-components/issues/4898.

As I commented in the above github issue, BBC videos also aren't playing for me in desktop Firefox, for at last the last few weeks, unless I disable ETP

(In reply to Alexander Browne from comment #2)

As I commented in the above github issue, BBC videos also aren't playing for me in desktop Firefox, for at last the last few weeks, unless I disable ETP

I've seen this issue in Canada with Tracking Protection (predecessor to ETP strict mode) for a couple of years at least.

FWIW, with no change on my part, BBC videos (e.g. https://www.bbc.com/news/av/world-middle-east-51162899/lebanon-protests-anti-government-protesters-clash-with-police) are playing for me now on desktop and Fenix.

Yes, I can confirm this.