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 ?
I can reproduce this.
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.
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.
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.