Somehow my Silverlight 4 plugin got corrupted so I uninstalled it, only to realize afterward that Silverlight 5 is not compatible with my operating system- 10.4.11. Now I can't find a download for the older version of Silverlight anywhere.
Microsoft silverlight 4 free download - Microsoft Silverlight, Microsoft Silverlight Software Development Kit Update 5/21/2007 for Mac, 3ivx Delta 4, and many more programs. Microsoft Silverlight is a free web-browser plug-in that enables interactive media experiences, rich business applications and immersive mobile apps. Silverlight works on all major OS's plus all major browsers, including Firefox, Google Chrome, Safari,. Microsoft has announced the release of Silverlight 3 for Mac OS X, along with a new version of its Expression design tool.Silverlight 3 is compatible only with Intel-based Macs, and offers better.

Look at the size of the file (typically) downloaded. All I got was 1 - 3 K. The file should be about 14 MB. I tryed MS but not even able to download. Found Silverlight.dmg as third party download where I had the option to save the file. In this case ( mac.softpedia.com › Internet Utilities › Silverlight - a crapy 'advertising' site.
Microsoft Silverlight is an already deprecated application framework used for writing and running rich internet applications. It can be likened to Adobe Flash. Its early versions centered on streaming media, while later ones supported multimedia, graphics, as well as animation. The latter also provided developers with support for CLI languages along with development tools.
Industry watchers were quick to observe Silverlight’s death as early as 2011. The following year, Silverlight fell out of favor and Microsoft deprecated it for HTML5 in Windows 8. Before 2015 ended, everybody knew that it was doomed, but the company remained largely unclear about its future.
Some Mac users, however, probably wonder: is Silverlight needed on Mac? Should they still install and enable it on their machine? Here are a few answers to burning questions about the technology near its demise.
Now in Silverlight 5, the program is defined on the Microsoft site as a “powerful development tool for creating engaging, interactive user experiences for web and mobile applications.” The free plugin is powered by the .NET framework. It is compatible with different browsers, devices, as well as operating systems.
From its initial launch back in 2007, Silverlight was already compared to Adobe’s Flash. It helped provide video streaming for different events, including the NBC coverage of the 2008 Beijing Summer Olympics, the 2010 Vancouver Winter Olympics, and the 2008 conventions for the two U.S. political parties.
Silverlight was also harnessed for the video streaming services of Amazon Video and Netflix. Since getting wind of Silverlight’s end of life, however, Netflix announced in 2013 that it was moving to HTML5 video.
In a July 2015 blog, Microsoft encouraged companies using Silverlight for media to start transitioning to DASH/MSE/CENC/EME based designs. It set October 2021 as the overall support end date for Silverlight 5.
If you are a Mac user and, by any chance, you find that you still need Silverlight, there are still ways to install and enable it on your computer. Don’t expect to have an easy time with it, though.
A user on macOS High Sierra, for instance, finds that Silverlight works on Safari until he gets to Safari 12. He has updated to Mojave at the same time. Upon further research, he discovers online that Safari no longer supports Silverlight, yet he couldn’t see any information about Mojave blocking apps from using the plugin.
Is it time for them to quit Silverlight altogether while staying on Mojave, or roll back to High Sierra to use the plugin again?
One handy solution is to stick to usingFirefox 52.9.0 ESR, which appears to work fine with Silverlight.
Now, it’s time for us to dig deeper into the issue of Silverlight for Mac not being recognized, or if you are continually prompted to install it. You’re likely having this problem when you receive an error message (stating an install is needed) whenever you try to access a website requiring Silverlight to display content.

Before troubleshooting, try to assess the current environment in which the software runs. It also helps to clean out junk and other nuisance files that could be getting in the way of your Mac’s stable operations. A reliable third-party Mac optimizer tool gets this done.


Here are the solutions you can try for each of the three potential causes of the problem.
Typically, the website uses Silverlight 3 for its content to properly show. If this is the case, it looks at whether your system complies with the requirement. If your system doesn’t, you are directed to an upgrade on the Silverlight site. If, on the other hand, you’re using a PowerPC, the site knows this and only version 1 can be installed. Discuss this situation with the site’s support team.
Note that if the right version of the plugin isn’t installed, you should ensure that the Run using Rosetta check box is not selected as well. Afterwards, follow the steps in the last section to install the plugin.
Is Silverlight needed on Mac? Only you can answer this question, depending on your needs and preferences. Silverlight 5 is on life support until October 2021, at which point Microsoft will cease to support it.
Try one of the fixes we provided above if you need to install and enable Silverlight on your Mac for whatever reason you find necessary.
Microsoft has announced the release of Silverlight 3 for Mac OS X, along with a new version of its Expression design tool. Silverlight 3 is compatible only with Intel-based Macs, and offers better performance, GPU acceleration, desktop tools, and support for higher-quality audio and video.
According to the company behind the Windows operating system, additional video and audio support includes native H.264/Advanced Audio Coding (AAC) Audio, live and on-demand IIS7 Smooth Streaming, full HD (720p+) playback, and an extensible decoder pipeline. For developers, new 3D graphics and animation features have been included, as well as hardware accelerated effects and text improvements to enable designers and developers to create next-gen visuals for the Web.
“Install Microsoft Silverlight on your Mac to make the most of the latest state-of-the-art Web site experiences,” Microsoft says. “Microsoft Silverlight delivers amazing experiences across leading news, sports, and entertainment sites with amazing 2D/3D animations, special effects, smooth, high-quality video that includes HD video and blazing fast performance. Silverlight ‘s Installation is secure, free and only takes few seconds,” the Windows maker assures potential customers.
“Silverlight and Expression fill a clear need in the marketplace for a complete, end-to-end solution that makes it easy for development teams to work together effectively, from concept to deployment, to create the types of rich interactive experiences today’s users expect,” Scott Guthrie, corporate vice president of the .NET Developer Platform at Microsoft, adds. “In a record amount of time, we’ve gone from being the industry newcomer to achieving a remarkable rate of industry adoption, rapidly delivering capabilities such as SketchFlow and IIS Smooth Streaming that are unmatched by other vendors. With more than 6 million developers with .NET programming skills worldwide and a platform that delivers a rich user experience at some of the lowest costs possible, Silverlight ubiquity is a matter of ‘when,’ not ‘if.’”
Silverlight 3 requires Mac OS X 10.4.8 (Tiger) or later, an Intel processor, a minimum 128 MB of RAM and is compatible with Safari and Firefox. Using the link below, Mac owners can download, install and use Silverlight 3 for free.