Rated 1 out of 5 stars

per Thomas Sisson el mar. 30, 2011 · enllaç permanent

I should have read the reviews. I'm running Thunderbird 3.1.9, so it won't install. Is this extension on hiatus, or has it been dropped?
I'm giving it one star because it won't work. You need updated Thunderbird versions for newer extensions like Lightning to halfway work.