I think the bug is with PulseAudio, not with Firefox. I have the same problem with Wine/Steam/Steam games hogging my sound and only giving it back when I exit Steam. Steam happens to load on Startup and is one of the very first apps to load.
-- firefox breaks sound output and hogs https://bugs.launchpad.net/bugs/413465 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs