So, my browser of choice is Safari 8. It does everything I need better than the others. However, for the occasional flash, I have Chrome installed. Since now I'm on vacation and have more time for my tf2, my mouse is plugged in more than usual. One thing I noticed is that under windows, I can click the wheel and it will use the mouse movements to navigate the webpages, in any browser. It never did that on my Mac. My thinking is that since it is Sony, they don't care (typical post 2000 Sony). However, when I tried Firefox (why use firefox in the first place? No advantages to typical user.) on OS X, the mouse actually did the same thing it does on Windows machines! Why? Anyway to replicate that on Safari? I searched for drivers, but found none. It's a crappy low end mouse. Vaio VGP-UMS30. I would never buy a Sony product, much less with Vaio branding like this one, but it came with a backpack.