Going back a few days:

Originally Posted By: artie505
Hmmm... I just noticed this: under "File", command-T is "New Tab", and under "History" it's "Reopen Last Closed Tab" (which command-Z used to do).

Can't help with your Safari troubles but in case you're not aware, command-z is Undo.

PS: Pendragon, I moved your post to a separate thread in the Mac OS X Applications forum: SuperDuper slows computer in Sierra


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