I failed to mention (back when) that in my complaint to Adobe, I told them I was optimized in Chrome.
Perhaps with the next update (or the next Firefox update), the problems mentioned here might be addressed.
But the squeaky wheel got the grease, in my case, I think because I detailed the pepperflash malfunction in such detail and told them exactly how to eliminate it (by not re-enabling it automatically with each subsequent update).
Or, I (we) just got lucky!
But I expect there will be at least another update before Christmas, so I'll report it when it happens.