Safari 10 In macOS Sierra Deactivates Flash, Silverlight and Other Plug-Ins by Default (webkit.org) 114
Apple's web browser Safari 10, which will ship with macOS Sierra, will disable Flash, Java, Silverlight, QuickTime and other plug-ins by default. The move will help the company improve the overall web browsing experience by focusing on HTML5 content. From a post on WebKit blog, authored by Apple's Safari team: When a website directly embeds a visible plug-in object, Safari instead presents a placeholder element with a "Click to use" button. When that's clicked, Safari offers the user the options of activating the plug-in just one time or every time the user visits that website. Here too, the default option is to activate the plug-in only once.