Still running FF 3.6.20 (all because of FF enhancements) and having no problems.
I do have a suggestion though!
This add-on would be PERFECT if
1) you could set a person on your watchlist from a certain date to another certain date. i.e. i'm told my friend will be gone from 5 Jan thru 17 Jan, so I set it up to add him to sitter view for that period of time.
2) I could send a REQUEST to a friend (who also must be using Speed Turns, obviously) to cover me from 5 May through 19 May. All he has to do is accept the "invitation" and i'm added to his Speed Turns watchlist for that period of time.
thanks for considering it!!!