Same bug happened to me but I found an easy way to resolve it at least for my case: In the sound settings I switch to the "Hardware" tab. There, for me, two devices are shown: "RV710/730" and "Internal Audio". If for "RV710/730" I switch the profile from "HDMI profile" to "Off" (thus disabling the device) everything works fine (reproducible). To me it seems as firefox/flash just takes the first available device it can find no matter what device it is. HTH
My system: Samsung N720-Auro (Stievo) Ubuntu 11.10 (Linux 3.0.0-19-generic #33-Ubuntu SMP Thu Apr 19 19:05:14 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux) Installed packages: firefox 12.0+build1-0ubuntu0.11.10.1 pulseaudio 1:1.0-0ubuntu3.1 flashplugin-installer 11.2.202.235ubuntu0.11.10.1 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/858466 Title: Ubuntu 11.10 Audio Problems with Browsers. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/858466/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs