Just upgraded my wife's mac pro to OSX10.10. Since the upgrade, whenever she logs into Google, it prompts her for her 2 factor every. single. time. Even if you check the "Remember me for 30 days" box, it still prompts her again the next time she goes to log in. Any idea what the problem is? I don't use Safari on my Macbook, so I haven't had the same issue since the upgrade.