Creates a new "Favmarks" sidebar (accessible via View -> Sidebar -> Favmarks or by using its shortcut key, Ctrl+M) that lists your bookmarks as favicons. Each favicon's tooltip text contains the bookmark's title. Folders are nested and expandable/collapsible, just as with the bookmarks sidebar. Left-click opens a bookmark in the current tab, and middle-click opens in a new, focused tab.
Due to lack of interest, this addon is no longer supported and will not be updated for future firefox versions.