Dark Launch

Toggle Firefox Navigation Toolbar; Keyconfig; nav-bar; PersonalToolbar; webdeveloper-toolbar

Toggle Navigation Bar
Javascript
goToggleToolbar('nav-bar', '');

Toggle Bookmarks Toolbar
Javascript
var b = document.getElementById('PersonalToolbar');
b.collapsed = !b.collapsed;

Toggle Web Developer Toolbar
Javascript
webdeveloper_toggleToolbar();

http://darklaunch.com/2009/05/10/toggle-firefox-bookmarks-toolbar-keyconfig
http://darklaunch.com/2009/05/11/toggle-firefox-toolbars-webdeveloper-toolbar-keyconfig