I'm sure there is an obvious answer to this question that I am just not seeing! A new "panel" has magically appeared in to bottom of my browser (full width). It contains History and Bookmarks. I can't figure out how to remove this bottom panel. I don't see anything in the settings that fixes this; and "restore defaults" does not remove it. The only thing I can do is drag the top of the panel down to minimize it - but it re-appears everytime a new browser window is opened. This becomes a real hassle when trying to use FIrebug or Web Developer, as they are competing for the same real estate. Can anybody shed some light on this for me? Thanks!