Safari 10….Set to HTML5
The upcoming version of Safari will prefer HTML5, and no longer tell sites that the plugins are installed. The browser has no built-in exception list, and so people will have to enable plugins on a per-site basis. If a site element is requesting Flash, it will initially claim that the plugin isn't installed and display an Adobe download link. In Safari 10, clicking on this link will let users know that the plugin actually is on their system, and ask whether they want to activate it once, every time they visit, or cancel. Read the full story here.