Interestingly, when I wrote "Review: Firefox 3 Burns Up The Web" just last week, the feature worked pretty badly. I tested Firefox against some obvious phishing e-mail and links to malware in my spam folder, and Firefox failed to trigger a warning most of the time.
But this week, when I tested Firefox again to make this video, it worked quite well -- Firefox set off the warning every time.
Did the protection improve that much in a week? Or were my tests bad? I'm looking into that.
For a look at another feature of Firefox 3, check out the previous video in the series: The Awesome AwesomeBar. Watch this space for two more installments.
Update 6/30: For another installment in our Firefox tour, check out our video on the browser's new ability to let you zoom Web pages.
Update 7/2: See the video on the new faster bookmarking system in Firefox.