Giới thiệu về Tiện ích này
Basically this extension brings OutlookExpress-like feature that selects and displays latest received message on startup.
When messages sorted by date and sorted ascendingly (oldest on top), it will scroll to the bottom and display the last message. In all other sorting a first message on top will be showed. By default, folders remember previously viewed message, to prevent that enable "Force" setting, it will make sure that newest/first unread message is opened when folder switched.
This feature was once available in Thunderbird v1, but for some reason was removed, leaving useless "startup page" or blank page feature.