No sound in browsers, other sound are fine

[Georgi Kourtev]

On Saturday 16 October 2010 03:14:01 Ric Moore wrote:
> On Fri, 2010-10-15 at 23:49 +0300, Georgi Kourtev wrote:
> > Dear all,
> > 
> > After upgrading to 10.10 I lost sound in browsers (Firefox,
> > Konqueror).  All other sound work fine (system ones, Amarok, video
> > etc).  Any ideas how to fix this? Could not find any meaningful
> > solution over the internet.
> > 
> > Runing 10.10, KDE 4.5.2, Flash plug-in installed.
> 
> IF you have pavucontrol installed, fire up your browser in one window
> and pavucontrol in another. While a video is actually playing, switch to
> pavucontrol, and see what it shows under the "playback" tab and where it
> is sending the sound. You should see a horizontal line acting like a
> vu-meter, showing you that it is receiving the audio signal to process.
> 
> If you see no such signal level, then the audio source is not making the
> trip. Make sure your apps are set to audio/device pulseaudio. Or, maybe
> you have another mixer volume level set to zero or muted. Try aslamixer
> on a command line. Wave a chicken foot? :) Ric

No, I don't have it installed (should I?)

None of the other system levels are set to mute. Thus all other things work 
fine.  Have no idea -- can it be from the plugging in Mozila? I have another PC 
with same settings and there are no problems.
gk