Comment 96 for bug 193141

Is this related? Happened while dragging a tab to the Bookmarks Menu.

    ASSERT: Insertion point for an menupopup view during a drag must be -1!
    Stack Trace:
    0:BMDH_onDrop([object MouseEvent],[object Object],[xpconnect wrapped (nsISupports, nsIDragService, nsIDragSession)])
    1:([object MouseEvent],[object Object])
    2:ondragdrop([object MouseEvent])
    3:invokeDragSessionWithImage([object XULElement],[xpconnect wrapped nsISupportsArray],null,7,null,0,0,[object MouseEvent])
    4:([object MouseEvent],[object XULElement])
    5:ondraggesture([object MouseEvent])

Steps to reproduce:
1. Drag a tab with valid URL to the Bookmarks Menu
2. --

Expected Behaviour:
1. Automagically open Bookmarks menu upon (to give more options where to place the bookmark)

Actual result:
1. Bookmarks menu won't open, the choice of Bookmarks folders is not given as it was in FF 1.5 or FF 2