This file is indexed.

/usr/lib/thunderbird/extensions/ is in thunderbird-l10n-sl 1:52.9.1-1~deb9u1.

This file is owned by root:root, with mode 0o755.

File Mime Type Owner Mode Size
..
/usr/lib/thunderbird/extensions/langpack-sl@thunderbird.mozilla.org.xpi root:root 0o777