Steve Jobs is using Apple Software Update to slip his Safari browser onto Windows machines. And Mozilla CEO John Lilly is peeved.

Presumably, Lilly is peeved because Safari browsers on Windows machines would eat into the market share of Mozilla's very own Firefox browser. But Lilly says he's peeved for different reasons. He says he's peeved because Steve Jobs' little Software Update trick undermines the security of the entire internet.

"What Apple is doing now with their Apple Software Update on Windows is wrong," Lilly writes on his personal blog. "It undermines the trust relationship great companies have with their customers, and that’s bad - not just for Apple, but for the security of the whole Web."

Steve Jobs and company unveiled Safari 3.1 on Tuesday, and to celebrate, they began offering the new browser to Windows users via Apple Software Update - that clever little tool that alerts you to new Apple software with a nothing-less-than-conspicuous pop-up window.

On Windows machines, Apple Software Update is automatically installed alongside iTunes and Quicktime. So you can bet that Safari has been offered to many millions of folks over the past week.

"Safari for Windows is the fastest and easiest-to-use web browser for the PC," reads the pop-up window that pops up on Windows PCs. "It displays web pages faster than any other browser and is filled with innovative features - all delivered in an efficient and elegant user interface."

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