Does not work with lot of spam Rated 2 out of 5 stars

Just tested with Thunderbird 3.1.2 on Linux Ubuntu. I have selected 220 of my spam and click to submit them to signal spam.
Then Thunderbird hangs without any indication of progress and a lot of windows with no name opened, has shown in this post:
I am disapointed

This review is for a previous version of the add-on (0.5).