Addon and facebook video replay issue

I use firefox under windows10 64-bit.

In the last few days, I noticed that I cannot play some facebook videos 
correctly and the number of such videos are increasing.

When I say I cannot play the video correctly, the screen is shown as 
consisting of colored vertical bars and no real image is shown.

I originally thought that there could be some codec issue or driver issue.
(I cleaned up my system SSD by removing unused programs, etc. a couple 
of weeks ago.)

However, the video plays in Microsoft edge and Google Chrome browser.
Something is wrong with the firefox.

When I restart firefox with all the addon disabled, I could play the 
video using Firefox.

So I tried to disable addons and plugins
via [Tools] -> addon menu.

*HOWEVER* even when I disable all the addons and never activate all the 
plugins, the video is garbled.
Only if I restart FF with addon disabled, I can play the video correctly.

Has anyone faced similar issues?
0
ISHIKAWA
10/10/2017 3:58:48 PM
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ISHIKAWA, Chiaki wrote:

> I use firefox under windows10 64-bit.
> 
> In the last few days, I noticed that I cannot play some facebook videos 
> correctly and the number of such videos are increasing.
> 
> When I say I cannot play the video correctly, the screen is shown as 
> consisting of colored vertical bars and no real image is shown.
> 
> I originally thought that there could be some codec issue or driver issue.
> (I cleaned up my system SSD by removing unused programs, etc. a couple 
> of weeks ago.)
> 
> However, the video plays in Microsoft edge and Google Chrome browser.
> Something is wrong with the firefox.
> 
> When I restart firefox with all the addon disabled, I could play the 
> video using Firefox.
> 
> So I tried to disable addons and plugins
> via [Tools] -> addon menu.
> 
> *HOWEVER* even when I disable all the addons and never activate all the 
> plugins, the video is garbled.
> Only if I restart FF with addon disabled, I can play the video correctly.
> 
> Has anyone faced similar issues?

Some add-ons are not usable after an install of them until a restart of
Firefox (and most will tell you and do the restart).  Similarly, after
disable, they may not get out of the way until a restart of Firefox.

So now you now one of your add-ons is causing the problem.  After
disabling them all and restarting Firefox, you'll have to reenable them
one at a time to retest if and when they interfere with the video.

For any add-ons marked "legacy" under about:addons, you should start
searching NOW for a replacement if an add-on does not have a WE
(WebExtension) version.  Firefox 57 will be here very soon upon which
legacy add-ons will be disabled and unusable.  If you wait until FF 57
comes out, you'll get caught with all those legacy add-ons that will no
longer load.

I don't know that any plug-ins (other than what Mozilla provides in the
build) can be installed into Firefox.  Plug-in support was killed back
in version 52.  See:

https://support.mozilla.org/en-US/kb/npapi-plugins
0
VanguardLH
10/10/2017 7:10:41 PM
On 2017-10-10 11:58, ISHIKAWA, Chiaki wrote:
> I use firefox under windows10 64-bit.
> 
> In the last few days, I noticed that I cannot play some facebook videos 
> correctly and the number of such videos are increasing.
> 
> When I say I cannot play the video correctly, the screen is shown as 
> consisting of colored vertical bars and no real image is shown.
> 
> I originally thought that there could be some codec issue or driver issue.
> (I cleaned up my system SSD by removing unused programs, etc. a couple 
> of weeks ago.)
> 
> However, the video plays in Microsoft edge and Google Chrome browser.
> Something is wrong with the firefox.
> 
> When I restart firefox with all the addon disabled, I could play the 
> video using Firefox.
> 
> So I tried to disable addons and plugins
> via [Tools] -> addon menu.
> 
> *HOWEVER* even when I disable all the addons and never activate all the 
> plugins, the video is garbled.
> Only if I restart FF with addon disabled, I can play the video correctly.
> 
> Has anyone faced similar issues?

The plug-ins are needed to play the video.

One or more add-ons is interfering with correct playback. Enable them 
one at a time until you find the bad one(s). Then remove it (them).

Good luck,

-- 
Wolf K
kirkwood40.blogspot.com
"Wanted. Schrödinger’s Cat. Dead and Alive."
0
Wolf
10/11/2017 12:26:39 AM
In message 
<mailman.1128.1507730634.16832.support-firefox@lists.mozilla.org>, 
VanguardLH <V@nguard.LH> writes:
[]
>So now you now one of your add-ons is causing the problem.  After
>disabling them all and restarting Firefox, you'll have to reenable them
>one at a time to retest if and when they interfere with the video.
[]
Not one at a time - half of them at a time. If you have, say, 16, you 
enable 8, then either enable another 4 or disable 4 of the 8, then 
enable or disable 2, then 1: four restarts, as compared to an average of 
8 (and up to 15) restarts. (Even more time-saving if you have more.)

(Do make _note_ of which ones you enable/disable, though, as Firefox 
will rearrange the order.)
-- 
J. P. Gilliver. UMRA: 1960/<1985 MB++G()AL-IS-Ch++(p)Ar@T+H+Sh0!:`)DNAf

If you're playing a killer monster, be very quiet. -
Anthony Hopkins, RT 2016/10/22-28
0
J
10/11/2017 8:09:49 PM
Thank you for everybody following up on my original post.

No matter what I did (removing the addon's, etc.), I could not solve the issue.
That is, the addon's did not seem to be the culprit.

But between then and now, the problem healed somehow.

During that time, I observed that some videos I could not see very well in
Facebook page could be played in youtube (although some of them seem to be
directly fed from Facebook and could not be played from youtube source.),
and there, too, the video was garbled if
the available maximum resolution was selected. But some videos then could be
played if I chose lower resolution in youtube's setting (!)

This made me suspicious of some problems in the video rendering.

I suspect that it was either
 - a codec issue [but unlikely although I tried re-installing some codecs],
 - [most likely culprit] the video driver issue: I use AMD Radeon graphics
card and
   I use AMD's update tool from time to time, and I made sure I had the
latest [which may not be the
  greatest idea now that I think about it].
  But after codec reinstallation did not seem to cure the problem,
   I ran windows update feature for the driver from Devices menu on a hunch, and
   to my surprise, an updated driver (!?) was installed. I have no idea now
who has the latest driver.

Anyway, come to think of it, for the last few days, I have not seen the
garbling of video any more.
And yes, during that time, there was an automatic windows update or two.

So many variables.
But it looked that the video driver was replaced with a buggy one or
something early October.

Thank you again for your tips (I tried all of them just to be sure) and when
they didn't work I resorted the reinstallation and driver update as I
described above.


CI



On 2017年10月11日 00:58, ISHIKAWA, Chiaki wrote:
> I use firefox under windows10 64-bit.
> 
> In the last few days, I noticed that I cannot play some facebook videos
> correctly and the number of such videos are increasing.
> 
> When I say I cannot play the video correctly, the screen is shown as
> consisting of colored vertical bars and no real image is shown.
> 
> I originally thought that there could be some codec issue or driver issue.
> (I cleaned up my system SSD by removing unused programs, etc. a couple of
> weeks ago.)
> 
> However, the video plays in Microsoft edge and Google Chrome browser.
> Something is wrong with the firefox.
> 
> When I restart firefox with all the addon disabled, I could play the video
> using Firefox.
> 
> So I tried to disable addons and plugins
> via [Tools] -> addon menu.
> 
> *HOWEVER* even when I disable all the addons and never activate all the
> plugins, the video is garbled.
> Only if I restart FF with addon disabled, I can play the video correctly.
> 
> Has anyone faced similar issues?

0
ishikawa
10/23/2017 4:20:51 AM
Reply: