The best browser, for any OS: Firefox.

The main reason why I like this browser so much is the popup blocking. I also love it because its not compatible with IE pages. :) So, everyone who uses Firefox is basically saying to the webmasters of the world ‘make your html more cross platform’.

I don’t use it on the Mac, because Safar is a little faster, but I still think on that platform that Firefox is superior. I just need every little ounce of speed on my slow 1Ghz Powerbook.