WOw Monday is apple day , because first we have seen apple has launched iphone  4 with many new features and iOs 4 is also announced at WWDC 2010 and now here is one more announcement from apple now are introduce all new Safari 5, Safari 5 adds support for customizing the browser with extensions, and also includes the new Nitro JavaScript engine for better performance and page rendering.

Safari’s new extensions support lets users build add-ons with HTML5, CSS3 and JavaScript, and Apple is also releasing and Extension Builder Kit designed to help with building Safari Extensions.

Version 5 improved HTML 5 support  with features such as closed captioning and full screen playback for HTML5 videos, geolocation, HTML5 object dragging, HTML5Ruby and AJAX History, sectioning elements, and forms validation. The update also improved security, sandboxes extensions to help prevent crashes and hacks, and more.

Safari 5 is available for both Mac OS X and Windows as a free download at www.apple.com/safari. Safari 5 for Mac OS X requires Mac OS X Leopard 10.5.8 or Mac OS X Snow Leopard 10.6.2 or later.