The most common cause of this issue is that the Web site is using Silverlight 3 for its content. Your system has an earlier version of the plug-in and does not meet the Web site's requirements Now we can address the individual causes and resolutions. But we recommended that you run the latest version so that you can access Web sites that use the newest features and take advantage of the most recent product improvements. If you have an Intel Processor, all versions of Silverlight are supported. xxx and your processor type is a PowerPC, you have the correct version of the plug-in installed. If the version number that is displayed is 1.0. Note the version number that is displayed. To determine the version, click to select the file. Is there a file that is named ugin? If this file exists, the plug-in is installed. Note the processor type, speed, RAM, and operating system information, as some Web sites have specific requirements to view their content.ĭouble-click the hard drive icon on the desktop. On the Apple menu, select About this Mac.

The browser is set to 'Run using Rosetta,' which will cause the computer to be identified incorrectly as a PowerPC-based Mac.īefore you determine how to address the issue, you should assess the current environment in which the software is running.

Your system has an earlier version of the plug-in and does not meet the requirements for the plug-in that the site is using. This behavior can occur for several reasons: When you try to access a Web site that requires Silverlight to display the content, you receive an error message that states that you have to install Silverlight. You can download it from Mozilla's release repository.įirefox 52 ESR has been replaced with Firefox 60 ESR, but its latest version is somewhat recent, released on June 25 2018.Īs explained above, neither Safari 12, Chrome version 45 or later nor Firefox 52 or later support NPAPI plugins, with the exception of Adobe Flash.Silverlight for Mac is not being recognized or you are continually prompted to install Symptoms If you insist on using Silverlight on macOS, I think your 'safest' bet would be Firefox 52 ESR for that specific sports site. This means that you must use an unsupported browser, with all the risks that entails. The culprit is the technology the plugin is based on: NPAPI, which has been deprecated in all major browsers because of security concerns, the latest of them being Safari with version 12. No, there is no way to make the current version of the Silverlight plugin work with Safari 12.Īs of today, no actively supported web browser on macOS can run the current Silverlight plugin (neither Safari, Chrome nor Firefox, see below for more information). Is there any way to enable the Silverlight Plug-In in Safari 12?

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