I have more bookmarks in that toolbar than Firefox was able to display which lead to the unfortunate situation that the last ones were not shown in this toolbar anymore. I was only able to access them using the arrow on the right side of that toolbar that contained all bookmarks who could not be displayed anymore. This was not a great situation and the first thing that came to my mind was to change the text of the bookmarks – identify the site with less text and you have more space for sites.
