Fixed When entering members into a mailing list, the enter key dismissed the panel instead of just moving onto the next linehttps://www.mozilla.jp/thunderbird/45.1.1/releasenotes/
Fixed Email without HTML elements was sent as HTML, despite "Delivery Format: Auto-detect" option
Fixed Options applied to a template were lost when the template was used.
Fixed Contacts could not be deleted when they were found through a search
Fixed Views from global searches did not respect "mail.threadpane.use_correspondents"