I'm running a 27" iMac that I recently upgraded the OS to Big Sur. Initially Safari wouldn't run (was on, but no windows would open), but when I ran a Safari upgrade to 16.3 it did come up with all of the "history" and my bookmarks, but none of the windows (roughly 15-20 with multiple tabs). Obviously the bookmarks were stored somewhere (a folder?), so I suspect the windows/tabs are also. As I'm also running a "Time Machine" external HD, that stored info would be there from before I did the OS upgrade. Where is that data located, and how do I force Safari to again display it?