Apple on the worldwide developers Conference 2010 in San Francisco introduced the next version of the web browser Safari (version 5.0) for Mac and Windows platforms. The most crucial changes available in that version of this program HML5 and the extensions support. The web browser has also the option to make Bing the default search engine.
The new extension builder in Safari serves as a sandbox for the extensions and runs only from web browser. Safari was the last program to introduce extensions. This has been done from Chrome, Firefox and Opera.