How to Activate Full-Screen Mode in Firefox

Eliminate distractions while working with one simple tweak

By
Scott Orgera
Scott Orgera
Scott Orgera
Writer

Scott Orgera is a former Lifewire writer covering tech since 2007. He has 25+ years' experience as a programmer and QA leader, and holds several Microsoft certifications including MCSE, MCP+I, and MOUS. He is also A+ certified.

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Updated on November 16, 2021

What to Know

  • On Windows and Linux, open Firefox and press F11 to either turn on or turn off full-screen mode.
  • On Mac, open Firefox and press Command+Shift+F to either turn on or turn off full-screen mode.

If you want a distraction-free experience while surfing the internet on your Windows, Mac, or Linux computer, Mozilla Firefox includes a handy full-screen mode. The Firefox user interface doesn't take up a significant amount of real estate. Still, there are occasions where the browsing experience is better when viewing it full-screen. Activating it is a simple process. We show you how below.

How to Activate Full-Screen Mode in Firefox

This tutorial walks you through it step-by-step on the Windows, Mac, and Linux platforms.

  1. Open the Firefox browser.

  2. To activate Full-Screen mode, select the Firefox menu, located in the upper-right corner of the browser window and represented by three horizontal lines.

    Firefox with the More menu highlighted

  3. When the pop-out menu appears, select the full-screen icon. It's a short line with two arrows pointing to opposite corners. You can see it highlighted in the image below.

    You can also use keyboard shortcuts in place of this menu item. On a Windows PC, press F11. On a Linux computer, press F11. On a Mac, press Command+Shift+F.

    The full-screen button in Firefox

  4. To exit Full-Screen mode at any time, select the full-screen icon or use one of the keyboard shortcuts a second time.

    Firefox in full-screen mode
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