Rated 5 out of 5 stars

ReminderFox exceeds MS Outlook reminders in at least 3 ways:
1) being available outside of any specific application such as e-mail,
2) showing two simultaneous tabs within reminder set up page (one tab to set reminder, which includes schedule frequency, and another tab to create any corresponding "to do task list"), and
3) displaying not only this reminder but also the date of next scheduled occurrence in the notification pop-up.
I do wish it included options to play a distinct audible sound for those of us with visual difficulties at selected times.

This review is for a previous version of the add-on (1.9.8.1).