I want to export my bookmarks for transfer to a new MAC. Instructions say start with "organize bookmarks" to do this. Instructions also say organize bookmarks is hidden by default in 4.0. They say to click on the orange "Firefox" tab at upper left corner of screen and go to "options" which will allow me to turn on "organize bookmarks" I'm running Firefox 4.0.1 and there is no orange "Firefox" tab on my screen. How can I get to "organize bookmarks"?