Assegnate 3 su 5 stelle

I'm encountering the same problem everyone else has reported, that the "Delete Junk!" button doesn't work in TB 3. A thread on this issue is here: http://forums.mozillazine.org/viewtopic.php?f=39&t=1699565 , and reports that the author is working on it. It might still be useful if the author would post something on when this will be fixed. I wonder if the problem is related to the different default manner in which items in the Junk folder are deleted in TB2 and TB3. In TB2, deleting items in Junk transfers them to Trash, whereas in TB3, they are deleted permanently and never appear in Trash (or at least that's what I think I've encountered). Thoughts?