You can "Customize" the toolbars to your liking. https://support.mozilla.com/en-US/kb/How+to+customize+the+toolbar <br /> http://kb.mozillazine.org/Toolbar_customization

Or for a step by step process see, You can make Firefox '''Firefox 5.0''' look like Firefox 3.6.19, 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 5.0, or 4.0.1, look like 3.6)]. ''Whether or not you make changes, you should be aware of what has changed and what you have to do to use changed or missing features.'' The is no Firefox 4.6, Firefox 4 is no longer supported.