*[https://bugzilla.mozilla.org/show_bug.cgi?id=448702 Bug 448702]: Removed 8-bit MIME Encoding. Status: Removed
*[https://bugzilla.mozilla.org/show_bug.cgi?id=448694 Bug 448694]: Remove UI for "Remember the last selected message" (mailnews.remember_selected_message) Status: Wanted