flash crashing browser

[Clifton Sammut]

Binary package hint: firefox-3.0

When playing a movie with sound (youtube) the browser sometime crashes and closes.
Below is when I run Firefox in terminal

________@__________-desktop:~$ firefox
!!! [Hook] hook(): title not found
!!! [Hook] hook(): title not found
!!! [Hook] hook(): title not found
firefox: pcm_pulse.c:312: pulse_delay: Assertion `pcm->stream' failed.
Aborted

I noticed that when I play from the site the sound settings are switched to Digital output now remaining analog as the y should be.

ProblemType: Bug
Architecture: i386
Date: Sat May 16 16:11:52 2009
DistroRelease: Ubuntu 9.10
Package: firefox-3.0 3.0.10+nobinonly-0ubuntu1
ProcEnviron:
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.30-5.6-generic
SourcePackage: firefox-3.0
Uname: Linux 2.6.30-5-generic i686