Microsoft Silverlight

Doesn't work in 10.8

Works fine in 10.7

Microsoft Silverlight

Supports iCloud

Secured by Gatekeeper

Supports retina graphics

Microsoft Silverlight icon

Available on the Mac App Store
Not available on the Mac App Store

Microsoft Silverlight is a free web-browser plug-in that enables interactive media experiences, rich business applications, and immersive mobile apps.

Version Version 5.1 (5.1.10411.0)
Developer Microsoft
Status Doesn't work

0 ratings

Mountain Lion DP1, DP2, DP3: Doesn't open at all.

Seems to work fine now with the GM of Lion and Silverlight 4 (4.0.60531.0).

Unacceptable battery performance in Lion. CPU usage up to 90%, fan constantly running high.

Hotmail issues reported on Apple Support Communities. Attachments using Hotmail don't work when Silverlight is installed. It is unknown which version causes problems at this time.

Moutain Lion (10.8) DP4 seems to fix the issues related to Silverlight not loading at the Showcase site and on Netflix.

Mountain Lion issues Sky go player and website no longer able to play DRM content

Archived comments

No comments.7 comments

[ Garrett]GarrettGarrett Bentley 22 Apr 2012 05:53

Does not work in Mountain Lion. Period.

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[ ]KennonB 02 May 2012 19:49

10.8 DP4 rectifies the issues with Sliverlight.

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AllanAllanAnonymous 01 Sep 2012 17:34

Videos are not playing smoothly with Mountain lion while it did play perfectly fine on OSX LION

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Lion (10.7) Comments

[ Matthew]MatthewAnonymous 18 Mar 2011 05:56

Silverlight website's "Showcase" page doesn't seem too cooperative.
Also, likely a Silverlight issue — after thorough uninstalls and re-installs of Silverlight, for the life of me, Netflix streaming continues to give a DRM error message both in Safari and Firefox. I'd love to hear if anyone doesn't have this issue.

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[ Stu Farnham]Stu FarnhamStu Farnham 06 May 2011 01:43

The Netflix issue is likely theirs, not Sliverlight's. I had the errors you discussed and, after blaming Silverlight and telling me to call MSFT, Netflix gave me the incantation to fix the problem. I wish I remembered what it was, just don't let Netflix put you off

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[ ]robspeed 27 Jun 2011 10:09

The beta of Silverlight 5 seems to fix most of the issues, including DRM. Download:

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[ matt]mattAnonymous 03 Jul 2011 06:38

No problems with the regular public version on the GM of Lion. Silverlight 4 (4.0.60531.0)

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