September 5th in Keyboard Shortcuts, Safari by Matt .
Quick Tip: Use Keyboard to Move from Tab to Tab in Safari
If you are a keyboard junkie as I am striving to become then you really need to know how to move from tab to tab in Safari. All you need to do is use the Command + Shift keys and then add the left or right arrow to move from left to right.
NOTE: This is not the same as Firefox, in Firefox you can only use the Keyboard for the first 9 tabs. You need to use Command + 1-9 for the tab you want to open. Example if the tab you want is 5th in line then use Command +5.
I like using Safari better for this reason alone.
September 8, 2008
I also dont use firefox in mac
http://macphobia.com/why-i-dont-use-firefox-in-mac.macphobia
September 25, 2008
By default you can move through these by typing Command+} and Command+{ but that requires the shift key. I rewrote the setting to just use Command+[ and Command+] so no shift key required. You can always change your keyboard settings in System Preferences. Just tell it what command you want to change and enter a keyboard shortcut. Easy and done! 2 keys > 3 keys
February 12, 2010
use control+tab to move to right side tab.,.,. and usecontrol+shift+tab to move to left side tab
September 15, 2010
FYI make sure you’re not in a form field when trying to do this or it doesn’t work, instead moving/selecting inside the form.