I have been trying - without success - to stream netflix, hulu, hbo go and disney plus using Firefox Developer edition for the last several months. Each time I go to Netflix it tells me the widevine CDM plugin crashes. I get various errors while trying to view any videos on Netflix, including "your network does not support streaming" - which I know to be false due to the two ROKU devices on two separate TVs in the house, my PS4 and Chrome all functioning properly on my machine. On disney plus I see Error 83 - and have attached a few screen shots. I went to the Shaka Player Demo (as referenced in another ticket) and it also crashed with the following error: Shaka Error MEDIA.VIDEO_ERROR (3,,NS_ERROR_DOM_MEDIA_FATAL_ERR (0x806e0005) - void __cdecl mozilla::gmp::ChromiumCDMParent::Shutdown(void): ChromiumCDMParent is shutdown) I have reset firefox - made sure it's updated to the latest version, unchecked and rechecked the DRM checkbox, erased all and created new profiles several times. downloaded (manually) the widevine latest CDM version (according to firefox) and placed fully downloaded versions of the dll files into the proper directory. I am still getting errors. I would prefer to use Firefox if at all possible, as I appreciate the tracking protections it affords. I have also - on a trial basis - excepted Disney Plus tracking protections and content restrictions (autoplay allow, all tracking protections off) and I have no extensions running save my 1password extension. Thank you for any help you can provide.