Now suppose you were using a latest version of the firefox browser,that is, version2.0.0.7,what should you do next step? take it easy. please choose the menu "tools",move your curse to "Add-ons" tab and click your mouse left button.At the moment,there is a windows appearing to you.
please choose the themes, you will see all of your themes being here,but the firefox is default. Where you can get the themes which you like? Here, i give a address where you can get the beautiful themes,https://addons.mozilla.org/en-US/firefox/browse/type:2,when you finish downloading your themes, you can click the button"use theme" as the bitmap showing, at last, restart your firefox browser, you will find your firefox browser change the face.