1306857 - Support Primetime plugin in Firefox 49 on Windows XP

Status: RESOLVED WONTFIX

(Core :: Audio/Video: Playback, defect)

Description

[sumanai]

User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:49.0) Gecko/20100101 Firefox/49.0
Build ID: 20160922113459

Steps to reproduce:

Updated Firefox to version 49


Actual results:

Primetime plugin disappeared from the list of plug-ins, video playback h264 became impossible.


Expected results:

I want to Primetime plugin was activated at Windows XP.
It worked perfectly in version 48, providing the video plays in h264.
Also, it needs to be established setting media.gmp.decoder.enabled true

Comment 1

[Virtual_ManPL [:Virtual] 🇵🇱 - (please needinfo? me - so I will see your comment/reply/question/etc.)]

Probably an INVALID bug per bug #1288582

Comment 2

[Chris Pearce [:cpearce (Not reading bugmail)]]

We made a deliberate decision to disable the Adobe CDM because we have thousands of crash reports from it. If you want to turn it back on, set the following prefs:

media.gmp-eme-adobe.visible = true
media.gmp-eme-adobe.enabled = true

To use the Adobe CDM for decoding, set:

media.gmp.decoder.enabled = true

We will not be supporting this code path. If it works for you, great, but for some set of users, it's a complete disaster.

Comment 3

[sumanai]

(In reply to Chris Pearce (:cpearce) from comment #2)
>If you want to turn it back on, set the following prefs:
This principle will not work. See changes in https://bugzilla.mozilla.org/show_bug.cgi?id=1288582 - there firmly stitched check for the OS version, and any prefs it can not change.
I made for myself a binary patch the appropriate file and repack omni.ja, but it is too difficult way to implement it with each update.
If you make these settings to work, I'll be happy.

Comment 4

[Chris Pearce [:cpearce (Not reading bugmail)]]

(In reply to sumanai from comment #3)
> (In reply to Chris Pearce (:cpearce) from comment #2)
> >If you want to turn it back on, set the following prefs:
> This principle will not work. See changes in
> https://bugzilla.mozilla.org/show_bug.cgi?id=1288582 - there firmly stitched
> check for the OS version, and any prefs it can not change.
> I made for myself a binary patch the appropriate file and repack omni.ja,
> but it is too difficult way to implement it with each update.
> If you make these settings to work, I'll be happy.

You can set the pref media.gmp-eme-adobe.forceSupported=true to bypass that check.

Comment 5

[sumanai]

(In reply to Chris Pearce (:cpearce) from comment #4)
> You can set the pref media.gmp-eme-adobe.forceSupported=true to bypass that
> check.
Thanks!

Comment 6

[Craig]

Unfortunately, Mozilla has made things even worse since FF49. Now the above fixes aren't even enough, because the plugin won't even download without significant messing about with obscure settings.

See the following for proper answers to this issue:
http://wp.xin.at/archives/4059
http://www.msfn.org/board/topic/175591-enable-mp4-h264-aac-html5-video-in-firefox-on-windows-xp-without-flash/