/usr/share/ is in xul-ext-https-finder 091-1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/xul-ext/https-finder/chrome/
/usr/share/mozilla/
/usr/share/mozilla/extensions/
/usr/share/mozilla/extensions/{ec8030f7-c20a-464f-9b0e-13a3a9e97384}/
/usr/share/xul-ext/
/usr/share/xul-ext/https-finder/
/usr/share/xul-ext/https-finder/chrome.manifest
/usr/share/xul-ext/https-finder/chrome/httpsfinder.jar
/usr/share/xul-ext/https-finder/install.rdf
/usr/share/xul-ext/https-finder/modules/
/usr/share/xul-ext/https-finder/modules/hfShared.js
/usr/share/xul-ext/https-finder/defaults/
/usr/share/xul-ext/https-finder/defaults/preferences/
/usr/share/xul-ext/https-finder/defaults/preferences/foxbeansdef.js
/usr/share/xul-ext/https-finder/defaults/preferences/defaults.js
/usr/share/doc/
/usr/share/doc/xul-ext-https-finder/
/usr/share/doc/xul-ext-https-finder/changelog.Debian.gz
/usr/share/doc/xul-ext-https-finder/README.Debian
/usr/share/doc/xul-ext-https-finder/copyright
/usr/share/mozilla/extensions/{ec8030f7-c20a-464f-9b0e-13a3a9e97384}/{6bdc61ae-7b80-44a3-9476-e1d121ec2238}
/usr/share/xul-ext/https-finder/defaults/preferences/000system.js