User Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:80.0) Gecko/20100101 Firefox/80.0

Steps to reproduce:

Load a BBC news website video:
https://www.bbc.co.uk/news/av/uk-england-hampshire-53838761/three-portsmouth-island-forts-go-on-sale-for-9m

Actual results:

During playback, the video will cut out (into black for a second or twi) randomly a couple of times then eventually it will crash. See screen recording here:
https://youtu.be/E40YBS3G1z0

Expected results:

Video plays out smoothly with no issues.

Bugbug thinks this bug should belong to this component, but please revert this change in case of error.

about:support --> https://paste.ubuntu.com/p/3RVdGXcQGY/

Ubuntu 20.04
Dell XPS 9560, i7-7700HQ, intel HD630 graphics
Firefox 80.0+build2-0ubuntu0.20.04.1 (Mozillateam ubuntu PPA)

My video capture above looks janky, but the video was playing smoothly otherwise.

Youtube videos seem to playback fine - problem seems to be specific of the BBC News site.

Apologies, I forgot to mention I am in Sway 1.5 and wlroots 0.11, if that makes any difference at all.

Given that this is on beta this might be a duplicate of bug 1656436

See also https://bugzilla.mozilla.org/show_bug.cgi?id=1656436#c26

Does the same problem occur with https://nightly.mozilla.org?
Start it with $ MOZ_ENABLE_WAYLAND=1 path/fo/firefox, set required prefs on about:config (gfx.webrender.all=true, media.ffmpeg.vaapi.enabled=true, media.ffvpx.enabled=false) and restart Nightly to test the BBC website. Thanks

It seems OK on latest nightly, at least on a few videos I've tried. I'll keep this open if you don't mind so that I can test it properly over several days as it's not reliably reproducible.

This hasn't re-occurred. Closing now.