7, which is an Integrated Development Environment (IDE) for developing games and applications using ActionScript and Flex framework runs on Java 6. Here too, the default option is to activate the plug-in only once Safari 10 will also include a command to reload a page with installed plug-ins activated to give users additional options for controlling the content that's displayed, and there are preferences for choosing which plug-ins are visible to which websites in Safari's Security preferences. If you encounter any issue again, just put a comment at the bottom of this post.
As explained by Apple developer Ricky Mondello in a post on the WebKit blog, when a website offers both Flash and HTML5 content, Safari will always deliver the more modern HTML5 implementation.