Nothing happened.
I saw The spinning loading wheel and the firefox/netflix header saying "blah blah audio video software being installed try again blah restart blah"...
I waited, I reloaded the page, I googled, I checked the DRM settings, I did blah blah blah.
Wasted time and frustrated I then opened microsoft edge and everything worked.
You know that firefox share is at 8% according to W3Counter? You know this kind of crap will only reduce this?
And then we'll only have the big daddy corporate sponsored browsers.
And all because users want to watch netflix.
What a bag of mediocre horse shit.