[Bug] Blocking of autoplay videos does not work as expected

[elonus]

Steps to reproduce

Open Firefox Preview Nightly.
Under settings -> permissions, enable blocking of autoplaying video and audio.
Open www.nrk.no and scroll down until you find a autoplaying video.

Expected behavior

I would expect that the video would be prevented from autoplaying

Actual behavior

The video autoplays, however the sound is disabled. I am however unsure if this is because Fenix is blocking it or if nrk is being considerate and having it by default disabled.

Device information

• Android device: OnePlus 7t
• Fenix version: Nightly 200304 06:01 (Build #20640607)

┆Issue is synchronized with this Jira Task

[Amejia481]

This happened because at the moment we are not disabling autoplay for muted content. We are working on an advance settings for autoplay for more info see #8017

[sv-ohorvath]

Now the auto-play videos on nrk.no are always blocked for me (no matter which setting I have), but on twitter.com they are not being blocked with Block video and audio set.

[Iey4iej3]

I don't know whether it is related. In some sites, no matter where I click on the webpage, the media will start to play. For example,
https://www.lachainemeteo.com/meteo-france/ville-33/previsions-meteo-paris-aujourdhui
This is also bad. I consider this as a variant of autoplay.

[Amejia481]

I was doing some tests on www.nrk.no, from a user perspective no video/audio was played while I was testing. I also tested on Firefox desktop (with allow video/audio) and Chrome and neither browser video or audio played, not sure if the site has changed its behaviour so far. From code perspective, I saw the permissions for ContentAutoPlayInaudible andContentAutoPlayAudible requested and allowed/denied depending on the settings on Fenix.

[elonus]

Thanks for looking into this! I think www.nrk.no might have changed the behaviour of their videos as I no longer see any autoplay, neither with blocking enabled nor disabled.

[Amejia481]

The issue is address on mozilla-mobile/android-components#8944 and will be fixed when Fenix update to the new ac version.

[abodea]

Verified as fixed on the latest Nightly 17/11 with Google Pixel 4 XL (Android 11).
Note that the auto-play was blocked and when tapping on the play button everything works as expected and the video/audio started to play.