There was an update..................after that..............
No. According to Enigmail for Thunderbird version 2.0.1 is the latest release, and on the Tunderbird addons page for Enigmail multiple reviewers said with version 2.0 and later (2.0.1 I guess) it no longer worked with their Thunderbird. Maybe they are using a release of Thunderbird earlier than 52, they don’t say.