This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Why is the top section of Firefox disappearing and reappearing all of a sudden?

  • 2 cavab
  • 1 has this problem
  • 11 views
  • Last reply by FredMcD

more options

The top part of the Firefox screen - containing bookmarks and the address bar etc - keeps disappearing and reappearing, and I have to scroll back to the top of the page to make it reappear again if I need it while I am browsing further down the page. I assume this is part of a recent upgrade. How do I turn this feature off? It's really distracting and frankly annoying, as well as pointless on a desktop computer with a 32" screen.

The top part of the Firefox screen - containing bookmarks and the address bar etc - keeps disappearing and reappearing, and I have to scroll back to the top of the page to make it reappear again if I need it while I am browsing further down the page. I assume this is part of a recent upgrade. How do I turn this feature off? It's really distracting and frankly annoying, as well as pointless on a desktop computer with a 32" screen.

All Replies (2)

more options

Make sure you do not run Firefox in Full Screen Mode (press F11 or Fn + F11 to toggle; Mac: Command+Shift+F).

When you are in Full Screen Mode, hover the mouse to the top of the screen to make the Navigation Toolbar and Tab bar appear. You can use one of these to leave Full Screen Mode:

  • press the F11 key
  • click the Maximize button at the right end of the Tab bar
  • click the Full Screen button in the "3-bar" Firefox menu button drop-down list
  • right-click empty space on a toolbar and click "Exit Full Screen Mode"
more options

Start Firefox using Troubleshoot(Safe) Mode {web link}

A small dialog should appear. Click Start In Troubleshoot(Safe) Mode (not Refresh). Is the problem still there?