Mac User Guide
- Welcome
- What’s new in macOS Sequoia
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- Intro to Continuity
- Use AirDrop to send items to nearby devices
- Hand off tasks between devices
- Control your iPhone from your Mac
- Copy and paste between devices
- Stream video and audio with AirPlay
- Make and receive calls and text messages on your Mac
- Use your iPhone internet connection with your Mac
- Share your Wi-Fi password with another device
- Use iPhone as a webcam
- Insert sketches, photos and scans from iPhone or iPad
- Unlock your Mac with Apple Watch
- Use your iPad as a second display
- Use one keyboard and mouse to control Mac and iPad
- Sync music, books and more between devices
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- Control what you share
- Set up your Mac to be secure
- Allow apps to see the location of your Mac
- Use Private Browsing
- Keep your data safe
- Understand passwords
- Change weak or compromised passwords
- Keep your Apple Account secure
- Use Mail Privacy Protection
- Use Sign in with Apple for apps and websites
- Find a missing device
- Resources for your Mac
- Resources for your Apple devices
- Copyright
Quit apps on Mac
If you use an app only occasionally, you may want to quit the app when you’re done using it, especially if the app uses significant energy.
To quit an app, choose App Name > Quit App in the menu bar. For example, choose Preview > Quit Preview (or press the keyboard shortcut Command-Q).
Keep in mind that if you click 
in the top-left corner of an app’s window, the window closes, but the app remains open (a small dot below the app’s icon in the Dock indicates that the app is still open).
Tip: If an app has windows open when you quit the app, the windows are shown the next time you open the app. To have app windows close and not be shown the next time you open apps, choose Apple menu 
in the sidebar (you may need to scroll down), go to Windows, then turn on “Close windows when quitting an application”.