Sergei Dolgov pointed it out to me and i tried out with success as well. If you use Mozilla and/or Phoenix in BeOS to browse the Web, you can rest assured that you're perfectly safe while doing it.

If you go to this site it'll run a series of tests (22 to be precise) on your browser, during which you'll see many windows open and close. The test takes a few minutes to perform so you have to be patient.. but not beard-growing patient. And it's good to know you're quite safe while browsing your favorite sites.

I didn't try it with Opera, since i don't use it, maybe someone could try it (hint: François) and let me know? These aren't earth shattering news, but it's good to know you're "in safe hands".