A reminder to all: Thunderbird Daily is now at version 68, and this is the version that will ship as the next ESR. If you have an idea for a new Web/MailExtension API, or an addition to an existing API, that you think should be a part of the next release, time is quickly running out. Please file a bug blocking bug 1396172 <__ https://bugzilla.mozilla.org/enter_bug.cgi?product=Thunderbird&component=Add-Ons%3A+Extensions+API&blocked=1396172> as soon as possible. I can't guarantee that everything proposed will happen, but things that aren't proposed will almost certainly not happen. GL P.S. Here's a list of the current APIs <https://thunderbird-webextensions.readthedocs.io/en/latest/>, as if I haven't posted it enough.