The Safari Extensions Gallery is accessible from the Safari menu or at extensions.apple.com. Users can download and install extensions from the gallery with a single click, and theres no need to restart the browser. Extensions can be automatically updated and are managed within Safari. Users can enable or disable individual extensions, or turn off all extensions with one click.
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. Safari 5 for Windows requires Windows XP SP2, Windows Vista or Windows 7, a minimum 256MB of memory and a system with at least a 500 MHz Intel Pentium processor.