bookmarks: show parent folder

The Bookmarks sidebar has a nice option to search for bookmarks ;
unfortunately, there is no easy way to find which folder does the
found bookmark live in -- so that any related links are not that easy
to find.

For a small number of bookmarks, this is not a problem, but for a
relatively big number, where bookmark search really shines, it is.

So my suggestion would be to do something like adding a button "show
parent folder" in the bookmark property dialog .

In the case if this was solved for Firefox 4.* -- I am using Firefox
3.6.24 and didn't check version 4 yet .