I am not sure exactly what you are trying to change, firefox is highly customisable. See *[[personas]] * [[using themes with firefox]] You are talking about firefox 4, and it is easy to make that look and behave more like firefox 3.6 if desired, some of the main changes are optional * [[why are tabs on top?]] (it is easy to set tham back to how firefox 3.6 looks) * the Firefox Button may be replaced with the menu bar toolbar * the bookmarks toolbar may be displayed if required * panorama is an optional (graphical) new way of handling [[what are tab groups?|tab groups]]

thank tou

Glad to have helped.