The bug indeed seems to conclude it's impossible until Flash is eradicated, though disabling Flash in anything but the foreground tab + click to play will proba

The bug indeed seems to conclude it's impossible until Flash is eradicated, though disabling Flash in anything but the foreground tab + click to play will probably make it moot. (Apparently Safari does exactly this) There's alternatives such as Shumway. Also, in my experience lack of Flash or it crashing is seen as a way bigger problem than nasty tabs, as of now.