No New Mail Icon with TB 6.x & Ubuntu Rated 4 out of 5 stars

It worked for me before TBird 6.0 and I really liked it. I just upgraded to TB 6.0 on Ubuntu and no matter what I tried I cannot get the new mail icon to appear in the Notification Area. I'd rather not install packages just to get this one extension to work so hopefully the author can easily fix this.

This review is for a previous version of the add-on (0.3.1).