Rated 1 out of 5 stars

ubiwaan কর্তৃক মার্চ 11, 2013 তারিখে ·

When will this Add On be made available for Seamonkey using Lightning?

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

by Tomasz Lewoc (Developer) on এপ্রিল 3, 2013 ·

It can already be installed in SM via a workaround. See here:
http://code.google.com/p/gt-tasks-sync/issues/detail?id=30