Press Command + Tab to switch between open apps
Press Command + ` to switch between windows of the same app
Press Control + Tab to move to the next tab in many apps and browsers
Press Control + Shift + Tab to move to the previous tab in many apps and browsers
In Safari, press Command + Shift + ] to go to the next tab
In Safari, press Command + Shift + [ to go to the previous tab
In Chrome and Firefox, press Command + Option + Right Arrow to go to the next tab
In Chrome and Firefox, press Command + Option + Left Arrow to go to the previous tab
Click the tab you want with the trackpad or mouse
Use Mission Control with Control + Up Arrow to view and select open windows and tabs in supported apps