The Mozilla Corporation has criticised Apple for spreading its Safari web browser through its software update service, normally used to patch applications that have already been installed. Mozilla chief executive John Lilly described it in a blog as misuse of the service. He argued that the practice might lead users to ignore future security patches. The new version, Safari 3.1, includes support for video and audiotags in HTML5 and the use of CSS animations and web fonts. Apple claims it loads pages up to 1.9 times faster than Internet Explorer 7 and up to 1.7 times faster than Firefox 2. It is available as a free download for Windows or Apple Macs from www.apple.com. Mozilla has released a fourth beta of its Firefox 3.0 at  here.