Bookmark navigator as a drop down list

[rinathabib]

Hi all!
It would be very convenient to display the bookmarks navigator not only as buttons, but also as a drop-down list. 
It happens that there are a lot of bookmarks and it is not always convenient to display them in the form of buttons

[JPritch]

Would really like to see this happen.  There seems to be plenty of demand for this functionality out there.