It seems we restrict the creation of new video wrappers - which is needed for Netflix, Prime Video, etc. fixes - to [Nightly](https://searchfox.org/mozilla-central/rev/fbb1e8462ad82b0e76b5c13dd0d6280cfb69e68d/toolkit/actors/PictureInPictureChild.jsm#123-135). We need to update the imposed condition to work on beta. (Perhaps we do not even need to read if beta or nightly, if we are already doing so for the actual [about:config preference](https://searchfox.org/mozilla-central/rev/fbb1e8462ad82b0e76b5c13dd0d6280cfb69e68d/modules/libpref/init/all.js#413-417)?).
Bug 1763190 Comment 1 Edit History
Note: The actual edited comment in the bug view page will always show the original commenter’s name and original timestamp.
It seems we restrict the creation of new video wrappers - which is needed for Netflix, Prime Video, etc. fixes - to [Nightly](https://searchfox.org/mozilla-central/rev/fbb1e8462ad82b0e76b5c13dd0d6280cfb69e68d/toolkit/actors/PictureInPictureChild.jsm#123-135). We need to update the imposed condition to work on beta.