File this under "features i didn't know about, but everyone else probably did"...
If you click on the bookmark icon in the address bar, it opens up the File Bookmark dialog. I never thought to click it before, since when you mouseover it, the mouse changes to a drag-and-drop hand icon.
Or you can always use Ctrl-Shift-D
Be sure that not everybody else knew this before, thanks for this cool tip!
I think this was recently implemented in this fashion.