Does safari work better? I deleted or disabled it, and stopped using it for a while. After upgrading to yosemite I haves used it a bit. Mozilla firefox seems to

Does safari work better? I deleted or disabled it, and stopped using it for a while. After upgrading to yosemite I haves used it a bit. Mozilla firefox seems to crawl. Even with tab focus and other performance settings the fan seems to turn on after lengthy use and dev tools would just spin the beachball. I am considering safari seriously as a primary browser unless I can find a way to optimize Firefox. How has your experience with safari been?