Safari Extension Version 5.1 Download for Windows and Macintosh(Snow Leopard).Safari Extensions are a great way for you to add new features to Safari. Built by developers, Safari Extensions use the latest HTML5, CSS3, and JavaScript web technologies. And they’re digitally signed and sandboxed for improved security.
Safari 5.1 Downlaod for Windows Xp, Vista, 7
Safari 5.1 Downlaod for Mac OS X Snow Leopard 10.6.8