Safari is not bad, but its buggy in Yosemite and it will slow down the whole system if you keep using it for like entire day and always keep 10+ tabs running. And I don't know why but since DP5 safari has problems with youtube. Chrome is a great alternative, it loads pages (slightly) faster than safari, but its laggy, really laggy. It freezes sometimes and, the most of the time even scrolling the pages are not that smooth. Besides, the UI is too ugly, at least for me I don't like it. But I still use it to watch utube. And them I started searching for a fast browser for mac. I finally recalled Opera from my deep memory and decided to give it a try. And, Opera is fast, bloody fast. The UI is still ugly, but no lags, no memory leaks, and most importantly, it opens pages like a thunderbolt. Now I think Im gonna stick with Opera or at least try it for few more days. you know browser is such a pain since Mac never had a truly perfect browser. If you care about speed, then just get alone with ugly UIs, if UI is the thing, just stick with safari. BTW Ive tried opera for 2 hours, spotted some issues, but never had problems with speed. And sorry about my limited english skill here.