Hide Firefox Bookmark Names - Show Icons Only

How many bookmarks do you have in your Firefox? If there are too many of them in the bar, Smart Bookmarks Bar will remove the clutter by hiding the names and show only the icons. The result: you have more space so you can add more. The name of the bookmarks will be displayed on mouse over. You can disable this rollover effect if you don't want it.

The options within the configuration panel: