Not mirroring Video from Netflix
Since the recent Update October 2022 Firefox is not mirroring Video from Netflix. It mirrors the home screen but when I go to play a movie/show it shows a black screen and audio. I have tried everything that's been suggested. Turning every off, device, modem router, apple box but nothing is working. This is very inconvenient. Please Help
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This might be the same issue (also on Mac, unsolved): DRM Content
The latest of many frequent updates has a bug fix for DRM content. Hope this helps, please let us know.
My problem started with the newest update. Yesterday I uninstalled the October 22, 2022 update 106.0.4 and installed an older version but that only made problems with other sites. I reinstalled the latest, cleared my cache again, unplugged everything again, waited 5 minutes. Turned all back on and still can't mirror Netflix to Apple TV. Black screen with only audio. It works on Desktop if airplay is off. As soon as I try Apple TV it goes black. I'll take any suggestions to try and solve this issue. Thanks for volunteering your support.
I went searching for Displaylink bugs and found bad news. It seems that Firefox was supposed to be blanking out DRM content all along, but there was a bug that allowed it to be captured. That was fixed in Firefox 106 and it's unlikely to go back (1796796, 1781122).