Comment 252 for bug 192888

oh wait. I just tried Con's nspluginwrapper package for i386 https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/192888/comments/39

my setup is with libflashsupport, flash 9, pulseaudio and his nspluginwrapper i386 package. It works now, I don't have epiphany crashing all the time when I close a tab with playing contents, and I can be listening to music with rhythmbox at the same time, without any hacks in my audio configuration. Tested multiple youtube videos and tried as hard as I could to make it crash, but the damn thing seems stable.

This is one more vote for the nspluginwrapper solution. To hell with it, it's a hack (less so than uninstalling pulseaudio) but it *works*.