You can see this in the System Preferences app, for example, and in preferences or settings windows of apps.) (Note that some windows can’t display full screen if their size is fixed, then you won’t see the green button. You’ll see the window expand, your menu bar slide away, and the Dock slide off the screen (if it’s visible).

Click the green button at the left of its toolbar,.

It’s quite simple to activate full-screen mode for any app on a Mac, and there are three ways you can do this: The Dock is hidden to access it, move your cursor to the bottom or the side of the screen, where the Dock is, and it slides into view. Even if the Dock is visible, switching an app into full-screen mode makes its window fill your display from top to bottom, and from left to right. To make your windows as large as possible, you can use full-screen mode. How do you make a window full screen on a Mac? In this article, I’m going to discuss how you use full-screen mode in macOS, and how you can get the most out of this feature to work efficiently on a small display. In an article about getting to know your Mac’s Dock, I explained how you can either position the Dock to the left of the display-getting more vertical space at the expense of slightly less horizontal space-or hide it entirely. When you open an app, its window only stretches from the top of the display to the top of the Dock, so you’re missing out on some valuable space. By default, macOS displays the Dock at the bottom of the screen, and it’s always visible. When you’ve got limited screen space available, it’s a good idea to use every pixel of it.

Fortunately, macOS offers a 'full-screen mode,' which you can use for most of your apps. On the contrary, if you have a smaller Mac, like a 12-inch MacBook, there’s not much room for multiple windows, and you may want to make each one as large as possible. You can have several windows visible, large and small, each organized efficiently. If you have a capacious 27-inch iMac, you’ve got lots of room to stretch out. The size of your Mac’s display can affect the way you work. Software & Apps How to Enter and Exit Full Screen Mode and Use Split Screen in macOS

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