I have searched Apple support and cannot find exactly what problems I am having with Safari. Before I updated to OS X Yosemite, various logins to website, Facebook, YouTube, etc. were automatically saved. When I manually clear all history in the browser it must be doing something that is even clearing my stored login credentials. Prior to the update this did not occur? I still want to be able to clear my own browsing history now and then, but not totally clear all my general logins that are saved to several websites. Also, each time I open the browser on one of my Macs, it constantly defaults to 2 tabs that I do not want. I have gone to Preferences and told it to always open a default page, but when I have closed the browser and shut down my Mac and start up again the next day perhaps, it's back to those 2 tabs when I first open Safari. Any ideas?