Favmarks is a Firefox add-on, can save space by reducing bookmarks to favicons, enable you to manage your bookmarks easier. Creates a new "Favmarks" sidebar that lists your bookmarks as favicons. Each favicons tooltip text contains the bookmarks 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.

Requirements:
* Firefox

The license of this software is Free, you can free download and free use this browser plug-ins software.