Closed Bug 1109484 Opened 9 years ago Closed 9 years ago

Silverlight fails to run on Netflix and Amazon Instant Video with Dec 9 update

Categories

(Core Graveyard :: Plug-ins, defect)

37 Branch
x86_64
Windows 8.1
defect
Not set
normal

Tracking

(firefox34 affected, firefox35 affected, firefox36 affected, firefox37 affected)

RESOLVED INCOMPLETE
Tracking Status
firefox34 --- affected
firefox35 --- affected
firefox36 --- affected
firefox37 --- affected

People

(Reporter: blandead41, Unassigned)

References

()

Details

User Agent: Mozilla/5.0 (Windows NT 6.3; Win64; x64; rv:37.0) Gecko/20100101 Firefox/37.0
Build ID: 20141209030205

Steps to reproduce:

Upgraded to newest silverlight version 5.1.31010.0 through Microsoft Update KB3011970

Went on netflix to play video

Downgrading to silverlight version 5.1.30514.0 fixes all problems


Actual results:

Silverlight will display it fails DRM Rights and will not play video


Expected results:

Silverlight videos should play as usual with newest silverlight version
Could you please check with e10s OFF in Firefox ?
Component: Untriaged → Plug-ins
Product: Firefox → Core
I can reproduce this.
Status: UNCONFIRMED → NEW
Ever confirmed: true
Basic Silverlight videos and other test pages function. Found http://download.microsoft.com/download/3/B/2/3B268085-1C48-4261-8D74-D45F10AC0337/ResetDRM.exe but I don't want to run this unless we have more people can reproduce.
Summary: Silverlight fails to run with Dec 9 update → Silverlight fails to run on Netflix and Amazon Instant Video with Dec 9 update
Hi e10s mode was already off. 

I believe the drm in silverlight runs in protected mode with the new version. I'm not sure if there are different ways to run plugins but maybe that's why issue occurs.
Hardware: x86 → x86_64
Is this DRM SL demo broken too?
http://web.sldrm.video.msn.com/d1/sldrm.html
Yes. PlayReady AES breaks on either Progressive download or streaming.
Running the Microsoft fixit tool should allow a downgrade.
There is not any action that Mozilla can take to fix this. Microsoft pulled their Silverlight update yesterday; users who got the bad version are encouraged to use the fixit tool (linked from comment 9) to revert back to the known-good version.

We'll be posting something on SUMO as well.
Status: NEW → RESOLVED
Closed: 9 years ago
Resolution: --- → INCOMPLETE
Product: Core → Core Graveyard
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