Bookmark Autohider is a Firefox extension, can hide the bookmark toolbar until you move the mouse above it. Bookmark Autohider is an add-on for Firefox designed to save space in your browser. It hi ides your bookmark toolbar until you drag your mouse above it.
This will provide you with more space on your screen and a simpler user interface. Just hover the mouse over the bookmark toolbar and it will be displayed again.

Requirements:
* Firefox

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