Ctrl-Tab and Ctrl-Shift-Tab both work, but I think the original shortcuts were: Cmd-{ and Cmd-} for switching tabs ( Cmd-[ and Cmd-] are back and forward too ).

Ctrl-Tab and Ctrl-Shift-Tab both work, but I think the original shortcuts were: Cmd-{ and Cmd-} for switching tabs ( Cmd-[ and Cmd-] are back and forward too ). Both of these still work, and are what I've used for 13 years now.