Mozilla/5.0 (X11; Linux x86_64; rv:82.0) Gecko/20100101 Thunderbird/82.0
Not of direct relevance to us as end users, but can someone shed light
on this and/or resolve the concern of the Wikimedia people? In the
meantime Lilypond support has been disabled on Wikipedia.
https://phabricator.wikimedia.org/T257066