Mac - Keyboard shortcut for cycling through tabs in Xcode, Terminal, Safari, Firefox

This works for Terminal, Xcode, Safari, Firefox, and probably many others:

Previous Tab: COMMAND+{

Next Tab: COMMAND+}

It's easy to remember:

• the braces point left and right (towards the tabs they activate)
• the keys are positioned conveniently next to each other on the keyboard.

Here's an alternative way to cycle tabs across Mac apps: ctrl+tab

Add shift to toggle direction.