/usr/share/mozilla/extensions/{718e30fb-e89b-41dd-9da7-e25a45638b28}/{a62ef8ec-5fdc-40c2-873c-223b8a6925cc} is in xul-ext-gdata-provider 1.3+build1-0ubuntu1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/mozilla/extensions/{718e30fb-e89b-41dd-9da7-e25a45638b28}/../../../xul-ext/gdata-provider