We have the problem where we need to disable hardware acceleration because of disappearing graphics and text in a tab that is not the initial tab. Disabling acceleration solves the problem, so no problem, sort of. The problem now is that Flash sites consume a lot of CPU, like 80%. Some Flash sites are worse than others but the bad ones typically end up being a game site and become so slow as to be unusable. Forge of Empires is a good example, Elvenar is pretty bad also. All this since the Quantum release. My system is a well equipped laptop, Win 10, latest Firefox, latest Flash, latest MS patches, no add-ons except for Flash. I guess I am making a statement instead of asking a question, I assume there is no resolution as yet and some future release will correct the issue. Sort of wondering if others have observed this behavior and what you think about it.