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
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