Apple have released Safari 5.01 for Mac and PC that lets users add extensions to the browser such as e-mail alert widgets and news alerts.

Safari users can add extra functionality to their browser via the Safari Extensions Gallery at extensions.apple.com

Apple is currently offering over 100 extensions on its site categorized into 16 different sections such as social networking, search tools, shopping, and RSS tools.

Safari 5.01 for Windows works with Windows XP SP2, Vista, Windows 7, and Mac users need at least OS X 10.5.8 for Leopard users and 10.6.2 for Snow Leopard.

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