This update for enigmail fixes the following issues:

enigmail was updated to 2.0.11:

* CVE-2019-12269: Specially crafted inline PGP messages could spoof a "correctly signed" message (boo#1135855)

enigmail was updated to 2.0.10:

* various bug fixes for configuring and handling encrypted e-mail
* UI fixes for dialogs, messages, and dark Thunderbird themes