Hide toolbar when fullscreening Firefox : Garden of Learning by Juhis

When you put Firefox into a full-screen mode, by default it keeps the toolbar and URL bar and all that in view.

Full screen Firefox visiting example.com. Toolbars are visible at the top of the screen.

There are two ways to hide them, for example if you’re presenting something.

Way 1: Hide toolbars

Firefox toolbar context menu open when in fullscreen mode. Second to last item is Hide Toolbars

You can right click on the top toolbar and choose Hide Toolbars. Once hidden, you can access them by moving your mouse to the top of the window.

Fullscreen Firefox in about:config page with search query fullscreen.autohide

If you navigate to about:config and search for browser.fullscreen.autohide and turn it to true, Firefox will hide the toolbars in the future.