How to make Firefox full screen on a Mac, and get the toolbar back

Control Command F puts Firefox in full screen on a Mac. How to show the hidden toolbar, leave full screen, and fill the screen without a separate Space.

Guide · Updated 22 October 2026

How do I make Firefox full screen?

  • Press ⌃ ⌘ F.
  • Or click the green button at the top left of the window.
  • Or choose View, Enter Full Screen.

Firefox moves to its own Space, and the menu bar and Dock hide. The same keys take it back out.

How do I see the toolbar in full screen?

Move the pointer to the top edge of the screen. The tabs and address bar slide down, and hide again when you move away. ⌘ L jumps to the address bar from anywhere.

How do I fill the screen without full screen?

Press fn ⌃ F on macOS 15 and later, or hold ⌥ and click the green button. The window grows to fill the screen, but stays on your desktop with the menu bar showing. Better when you switch to other apps often. See full screen versus maximise.

Why does F11 not work in Firefox on a Mac?

On a Mac, F11 belongs to the system, where it shows the desktop. See F11 on a Mac.

The same for other browsers: Safari full screen and Chrome full screen.

Questions

What is the full screen shortcut for Firefox on Mac?

Control Command F.

How do I exit full screen in Firefox on a Mac?

Press Control Command F again, or move the pointer to the top of the screen and click the green button.

How do I see the address bar in Firefox full screen?

Move the pointer to the top of the screen, or press Command L.

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