Hi Travis, there's no built-in setting for multi-row toolbars. The community has developed a workaround that involves creating an optional userChrome.css file, a file you can set Firefox to load a startup which allows restyling the toolbar area in various ways. I have a site dedicated to the topic of userChrome.css files: https://www.userchrome.org/how-create-userchrome-css.html This is an example of a style recipe to create a multi-row bookmarks toolbar: https://github.com/MrOtherGuy/firefox-csshacks/blob/master/chrome/multi-row_bookmarks.css