[Bug 1895643] Re: Backport Thunderbird 78 to 20.04 LTS and 18.04 LTS

[Timo Jyrinki]

Indeed security updates will force the move to 78 sooner or later. I'm
myself a happy user of 78 nowadays but can understand the Enigmail
change will cause grey hairs even if most of the little bugs have been
fixed.

In my case, I think I upgraded when 78.2.2 was out, I needed to tinker a
bit before I realized I needed to manually go to Manage Identities of my
account and select my key there for each ddress before my setup was
complete. The upgrade didn't automatically enable using the OpenPGP key
associated with the e-mail addresses other than the account's main one.

Here are some resources to read through just in case people find this
bug when they encounter the migration:

- Enigmail's own message (2019-10): https://enigmail.net/index.php/en/home/news/70-2019-10-08-future-openpgp-support-in-thunderbird
- Thunderbird team's message (2020-09): https://blog.thunderbird.net/2020/09/openpgp-in-thunderbird-78/
- A comprehensive FAQ: https://support.mozilla.org/en-US/kb/openpgp-thunderbird-howto-and-faq
- Migration guide in wiki: https://wiki.mozilla.org/Thunderbird:OpenPGP:Migration-From-Enigmail
- Discussion forum: https://thunderbird.topicbox.com/groups/e2ee
- Security analysis in Tails: https://gitlab.tails.boum.org/tails/tails/-/issues/17147
- Interesting related feature requests to follow:
  * https://bugzilla.mozilla.org/show_bug.cgi?id=1654893 "Support configuration with an offline primary OpenPGP key"
  * https://bugzilla.mozilla.org/show_bug.cgi?id=1644085 "Support automatic multiparty encryption, similar to groups in GnuPG or Per-Recipient Rules in Enigmail"

** Bug watch added: gitlab.tails.boum.org/tails/tails/-/issues #17147
   https://gitlab.tails.boum.org/tails/tails/-/issues/17147

** Bug watch added: Mozilla Bugzilla #1654893
   https://bugzilla.mozilla.org/show_bug.cgi?id=1654893

** Bug watch added: Mozilla Bugzilla #1644085
   https://bugzilla.mozilla.org/show_bug.cgi?id=1644085

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Title:
  Backport Thunderbird 78 to 20.04 LTS and 18.04 LTS

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