Switch tabs in Safari - Shortcut (⌘ + ⌥ + Arrow)
You can use ctrl + tab to switch to the next tab (equivalent to ⌘ + ⌥ + &gt;) and ctrl + shift + tab to switch to the previous tab (equivalent to ⌘ + ⌥ + &lt;).

You can use this on Safari, Chrome and Firefox, basically with any app that has tabs.