I can't see Start button and have to turn off my computer using the power button / stop

When I use Mozilla, I can see no longer the button 'Start' at the bottom left of the computer. The only way that I can disable the computer is holding the "Power" button What I did to cause this.

Make sure that you run not Firefox mode full screen (press F11 or Fn + F11 to toggle; Mac: Command + SHIFT + F).

If you are in full screen view then hover over with the mouse to the top of the screen to facilitate the bar appear Navigation and tab bar.
Click the expand (in the top right Navigation bar) to exit full screen or right-click on a space empty on a toolbar and select "exit full screen" or press the F11 key.

Tags: Firefox

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