Silverlight and other NPAPI plugins aren´t the cause of this problem. Chrome also blocks most other plugins based on NPAPI (Netscape Plugin Application Programming Interface), including Unity, Java and many others. Starting with Chrome Version 42, the Silverlight plugin is blocked by default and doesn´t run – until you change certain browser settings. Microsoft is holding out support for another 3 years on Silverlight.Is Chrome giving you static about running Silverlight? Follow these simple steps and get everything working in under a minute. I understand that Silverlight is old, but if my company assumes the security risk around using Silverlight then I say make it possible to run Silverlight.

I'm still holding out some hope that I can run Silverlight but I may need to roll back to High Sierra as this is critical for my work. All of the Apple documentation I have found notes that Safari no longer supports NPAPI but doesn't say anything else about the Mac OS Mojave blocking other applications from using these types of plugins.Can you shed any light around Silverlight being completely dead on Mac OS Mojave users? Should the notes around NPAPI really have just said that Silverlight can't be run on Mac OS Mojave period instead of just on Safari.

I along with other users of a company Silverlight application have updated to Mac OS Mojave. At that point Firefox ESR 52.1.0 still ran Silverlight. I was on Mac OS High Sierra and Silverlight was working on Safari until I installed Safari 12. Silverlight on Mac OS Mojave I am using Firefox ESR 52.1.0 on a MacBook.

Silverlight on mac chrome