My arrow to take me back to the previous page and my address bar has disappeared on firefox.How do I get them back?
Are you in Fullscreen? (press F11 to see)
Otherwise, please close Firefox, hold down the shift key and re-open Firefox. Press the Reset Firefox button.
Make sure that toolbars like the "Navigation Toolbar" and the "Bookmarks Toolbar" are visible:
Open the Customize window to set which toolbar items to display: