Chrome Version 42 has discontinued default support for NPAPI plugins such as Java, Microsoft Silverlight, and Shockwave.
You may notice these issues when using Resource Scheduler, attaching a file via the Outlook Web Application, or using an educational tool that uses Java or Shockwave to run. You will either see a message "Plug-in not supported" or a non-responsive web page.
To resolve this issue, please use Firefox or Internet Explorer for these web pages.
For a detailed explanation on this change, please read the article below: