Plugins lists 3 plugins: Primetime CDM, OpenH264, and Widevine CDM. I click "check to see if your plugins are up to date", and it says no plugins were found.

Also, I have OpenH264 and Widevine set to Never Activate, and Primetime set to Always Activate. Also I have Play DRM Content checked. But when I try to play a video on netflix, the page stays blank and at the top of the screen it says "You must enable DRM" Huh? I thought that Netflix on windows firefox used Primetime CDM, and I have it enabled... When you ask Netflix support they say "try using Chrome browser" ...