Youtube videos not posting?

[Angrboda]

I'm using palemoon, which is an optimized version of Firefox. I did notice some peculiarities in a post of TaraJo's, but more importantly, within the past week, a new version of flash player was released or something, requiring me to update the flash player, and resulting in all sorts of weird incompatibilities until I did so (including DP's newest apologetics video not displaying at all in his post). Perhaps this is the source, and Youtube and/or Adobe are fronting incompatible versions of flash plugin which Chrome has yet to update.