https://bugzilla.mozilla.org/show_bug.cgi?id=1831779
1831779 - TEST-UNEXPECTED-FAIL | comm/mail/test/browser/tabmail/browser_dragndrop.js | should have...
RESOLVED (nobody) in Thunderbird - Mail Window Front End. Last updated 2025-05-28.
https://bugzilla.mozilla.org/show_bug.cgi?id=1554629
1554629 - [de-xbl] convert the tabmail binding
RESOLVED (alessandro) in Thunderbird - General. Last updated 2019-08-06.
deconvertbinding