thunderbird 11.0.1+build1-0ubuntu2 / usr / lib / thunderbird-11.0.1 / extensions

/usr/lib/thunderbird-11.0.1/extensions is in thunderbird 11.0.1+build1-0ubuntu2.

This file is owned by root:root, with mode 0o777.

It is a symlink to /usr/lib/thunderbird-11.0.1/../thunderbird-addons/extensions