So, you're just seeing the webpage without any toolbars (including the address bar/URL bar)?

On the top left corner of your browser window, you should see an orange button with the word Firefox written in white text. Click on that.

In the drop-down menu, move your cursor to "Options." From there click on the Navigation Toolbar and the Bookmark Toolbar.

You can also toggle the Menu Bar, if you prefer to have File, Edit, View, etc. menus listed across the top of the window.

Does this help?

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

• https://support.mozilla.org/kb/how-to-use-full-screen

It is possible that the screen is too wide or too high and that the scroll bars fall off.

• Use Restore or Maximize in the right-click context menu of the Taskbar icon to set focus to the Firefox application if you do not see the Firefox window.
• Open the system menu of that Firefox window via Alt+Space and see if you can move and resize that window (use the keyboard cursor keys).

If that works then first close all other open Firefox windows and then close Firefox via "File > Exit/Quit" to save that setting.

If the above didn't help then see:

• http://kb.mozillazine.org/Corrupt_localstore.rdf

Thanks, this worked, but the orange box was still hidden above the top of the screen. When I moved the cursor above the top, the orange box did come down and I was able to fix the problem.

Awesome! Glad it worked out for you. =)