I do not think that this is "great", since Mozilla does not mark all trash and
maybe some people have additional spam-filter-programms that generate header
additionals which causes the marked mails to be moved to the spam folder by a
mozilla filter setup.
I don't want to delete 50% of my spam e-mails myself.
So I think the only "great" solution is a "clean spam folder" item.
I do not think that this is "great", since Mozilla does not mark all trash and programms that generate header
maybe some people have additional spam-filter-
additionals which causes the marked mails to be moved to the spam folder by a
mozilla filter setup.
I don't want to delete 50% of my spam e-mails myself.
So I think the only "great" solution is a "clean spam folder" item.
It's only a menu item to implement....