''Where is the address bar for typing in a web page?'' Are you in full screen mode toggle on/off with F11. :Or if window is maximized "Alt+Spacebar" > Restore, then if dialog remains "Esc" Quick method: Ctrl+L To redisplay the Navigation and/or other toolbars: # "Alt+V" (View Menu) # Toolbars (shortcut at this point is T) # if Navigation bar does not have a checkmark, click on that bar You can make Firefox 4.0.1 and '''Firefox 5.0''' look like Firefox 3.6.17, see numbered items 1-10 in the following topic *[http://dmcritchie.mvps.org/firefox/firefox-problems.htm#fx4interface Fix Firefox 4.0 toolbar user interface, problems (Make Firefox 4.0 look like 3.6)]