Amir's method works bu has quirks. No, I didn't meant it to rhyme but it does so Sorry for that. Many Firefox 2 extensions work seamlessly but the Themes become a PITA as their buttons etc become inoperative, I mean to close a Tab one has to Right-Click on it and then Close it , the big X mark on the Tab doesn't works. Menus too are bit of jagged. All Ic an say is method is good but bit rough around the edges.