Invalid: Is Youtube Broken?

[therube]

Is Youtube Broken, no video playback, only the "spinner" displaying in the video window?

https://www.youtube.com/watch?v=QByXiqkECKQ

FF 57.
noscript-10.1.6.3rc5.xpi

Invalid.
Googlevideo was set as untrusted. I guess I (mistakenly) did that?
(I wouldn't have expected me to do that? Google.com, very possible I would set as Untrusted. Googlevideo, not likely?)