Reopen Safari Closed Tabs and Windows

Once you close a tab in Safari, you can easily reopen it. If you just closed the tab, you can use Edit, Undo (Command+Z) to quickly reopen it. You can also go to History, Recently Closed to reopen tabs or windows. You can also use History, Reopen Last Closed Tab, which changes to Reopen Last Closed Window if you more recently closed a Window. Reopen Last Closed Window will include all of its tabs.