Hello CADmando, All you really have to do to close the bookmarks sidebar is to click on the closing X (at the top of that bar) .... Also see this article : https://support.mozilla.org/en-US/kb/use-firefox-sidebar-access-bookmarks-history-synced ---------------------------------------------------------------------------------------------------<BR> Just in case the bookmarks sidebar opens every time you start Firefox; would you please take a look at this bug report and see if maybe something there applies to your situation : https://bugzilla.mozilla.org/show_bug.cgi?id=1498847

These are not the solutions I'm looking for. My question is how to undock the toolbar not close it so that I can move it to the other screen.