Basic Bookmarks for FF3

Hides `Bookmark Menu` and `Bookmark Toolbar` from the bookmark SideBar, allows you to arrange your bookmark structure however you like (like in FF2), and frees space in the sidebar. Works by using `Unfiled Bookmarks` AS the bookmark sidebar. This restores the functionality of the sidebar in FF2, allowing you to arrange your bookmarks as you like. It also reduces the wasted Whitespace in the sidebar (huge compared to FF2), meaning you can make the sidebar smaller - helpful where screen size is limited (Eee PC, netbooks, etc). If, like me, you don`t use the Bookmark Menu or Toolbar items in the sidebar, there is Little point in having them there.