- Apple Finally Shuns Adobe’s Flash, Blocks It by Default on the Desktop - starting with Safari 10 in macOS Sierra, Flash will be disabled by default and will attempt to load the HTML5 version of each website should it exist http://news.softpedia.com/news/apple-finally-shuns-adobe-s-flash-blocks-it-by-default-on-the-desktop-505272.shtml 3 comments webdev