Rated 3 out of 5 stars

Could be the missing link between tasks and mails in TB+lightning. But unfortunately, support of such a link is very weak, as all emphasis in ReminderFox is on reminders, very little on tasks.
Of course, if Lightning was doing that from scratch, I would not be here :)
My great expectations either in ReminderFox or in Lightning are disappointed for the moment.

This review is for a previous version of the add-on (1.9.7).