It looks like you are using an ad blocker. That's okay. Who doesn't? But without advertising revenue, we can't keep making this site awesome. Click the link below for instructions on disabling adblock.
So this little app isn't just for mac uses, but for everyone using firefox. I figured alot of people here, myself included, prefer firefox over Safari, and I've found a sick add-on for it. It's called stumble. It's a little button on your toolbar that you click and it takes you to a random site, based of your preferences. You give Stumble feedback by clicking thumbs up or thumbs down, and the system gets to know your personal preferences.
Link: http://addons.mozilla.org/en-US/firefox/addon/138