[Swordmaker]

Well, Safari's pop-up blocker is better... Pop-up ads appeared on a couple of sites that Safari blocks pop-ups on completely.

[Salo]

I use both - it has been my experience that if you keep your adblock filters up to date, FireFox blocks ads - inclusing popups - better than Safari does. The adblock updates are at Pierceive.

Well, Safari's pop-up blocker is better... Pop-up ads appeared on a couple of sites that Safari blocks pop-ups on completely.