''the little house or the home symbol is missing / disappeared'' Firefox 4 moved the '''Home''' toolbar button to the right-hand side of the navigation bar to "save time". You can move back where you like see item #4 in ... You can make Firefox '''Firefox 5.0''' look like Firefox 3.6.18, 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)].