no more sound in firefox

hi,
since several days, when I try to play any video or audio file in firefox,
I get the message:

    to play audio, you may need to install pulseaudio  "learn how"

1/ clicking on "learn how" gives:

     The page you are trying to access was not found.
     Please check your URL for typos and try again.

2/ anyway, I installed the pulseaudio package. After that:
    - the firefox message disappeared, but still no sound
    - no more sound in any other program !!

OS: Debian Jessie
Firefox version: 52.0.1

On any other web browser, the sound works perfectly....

I noticed that support for NPAPI plugins ended with firefox version 52,
but:
   - the flash plugin is still installed, and anyway is not needed to
     play mp3
   - I installed the Firefox ESR version, which was supposed to fix
     this issue until 2018, but I get exactly the same message...

Is there an other fix than moving to chromium or opera?

best regards,
-- 
Pierre Frenkiel
0
Pierre
3/19/2017 11:02:20 AM
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Pierre Frenkiel <pierre.frenkiel@gmail.com> Wrote in message:
> hi,
> since several days, when I try to play any video or audio file in firefox,
> I get the message:
> 
>     to play audio, you may need to install pulseaudio  "learn how"
> 
> 1/ clicking on "learn how" gives:
> 
>      The page you are trying to access was not found.
>      Please check your URL for typos and try again.
> 
> 2/ anyway, I installed the pulseaudio package. After that:
>     - the firefox message disappeared, but still no sound
>     - no more sound in any other program !!
> 
> OS: Debian Jessie
> Firefox version: 52.0.1
> 
> On any other web browser, the sound works perfectly....
> 
> I noticed that support for NPAPI plugins ended with firefox version 52,
> but:
>    - the flash plugin is still installed, and anyway is not needed to
>      play mp3
>    - I installed the Firefox ESR version, which was supposed to fix
>      this issue until 2018, but I get exactly the same message...
> 
> Is there an other fix than moving to chromium or opera?
> 
If you google 'firefox pulseudio' you'll find a lot about this.
 And some bugs:
https://bugzilla.mozilla.org/show_bug.cgi?id=1345661

That bug suggests you need to switch sound programs to use PA, but
 I'm not sure. On SuSE I've been using PA for years.
 

One temporary option would presumably be to revert to a pre-52
 version of Fx.
-- 
(Remove any numerics from my email address.)
0
Dave
3/19/2017 11:40:54 AM
On Sun, 19 Mar 2017, Dave Royal wrote:

> If you google 'firefox pulseudio' you'll find a lot about this.
> And some bugs:
> https://bugzilla.mozilla.org/show_bug.cgi?id=1345661

   I don't have  now enough time to read all of this huge thread, but the comments about PA
   actually correspond to the problems I always had after installing it.
   The wrong link for "learn how" gives an idea about how mozilla people test their programs...
> . . .
>
>
> One temporary option would presumably be to revert to a pre-52
> version of Fx.

   Installing firefox 51.0 was actually a good  temporary fix, until they launch
   an acceptable release.

   Thanks Dave.

best regards,
-- 
Pierre Frenkiel
0
Pierre
3/19/2017 2:00:25 PM
On Sun, 19 Mar 2017 15:00:25 +0100, Pierre Frenkiel wrote:

>    The wrong link for "learn how" gives an idea
>    about how mozilla people test their programs...

The correct page was apparently useless, anyway. This is useful if you 
want to configure a minimal PA:
<https://wiki.archlinux.org/index.php/PulseAudio/
Examples#PulseAudio_as_a_minimal_unintrusive_dumb_pipe_to_ALSA>
(Info from bug 1345439)

>    Installing firefox 51.0 was actually a good  temporary fix, until
>    they launch an acceptable release.

My guess is that Moz will revert this change, so I would wait. Comment 21 
of bug 1345661 recommends using Fx 45 ESR rather than 51.0.1 
-- 
(Remove any numerics from my email address.)
0
Dave
3/19/2017 3:02:54 PM
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