Thunderbird version 60 and its minor updates contain about a dozen critical and high security fixes. If possible, please move this package to green. Thanks.
This appeared in Debian Buster awhile ago and has been on /pureos/pool/main for a couple of weeks. I do not think you make changes to this package. If there is somewhere users can look to see what the status of a package is or why it has not been propagated, it would be great to learn that location.