Rated 4 out of 5 stars

by Nicholas van Oudtshoorn on March 8, 2012 ·

Works well with the KDE icon-only task manager - when one tiny little fix is made:

in /chrome/content/update-badge.py, replace the lines beginning ITEM21_ with:
ITEM21_NAME = 'net.launchpad.DockManager'
ITEM21_IFACE = 'net.launchpad.DockItem'

Close thunderbird, restart! Voila!

This review is for a previous version of the add-on (0.6.4).