Selectable and click-events on childnodes in Firefox 3.0

I'm having a problem with selectable in Firefox. When I set selectable
to an element, I lose lose all the click and doubleclick events on
childnodes.
Testcase to resemble my situation: http://pastebin.com/m5d9fe732
Online: http://since85.be/test/test.html
This works well on Opera and even on IE but not on Firefox 3.0.