Favebot allows you to view the people who favorited a tweet natively in Tweetbot 3. Due to restrictions in Twitter's API, Tweetbot shows the Favstar page for a tweet when the number of favorites is tapped. Favebot fixes this by retrieving the list of favoriters using a private Twitter API call, then displaying them in Tweetbot's native favorites view (similar to the retweeters view).
No options to configure.