/usr/share/xul-ext/reloadevery/locale/ is in xul-ext-reloadevery 28.0.2-2.
This file is owned by root:root, with mode 0o755.
..
/usr/share/xul-ext/reloadevery/locale/cs-CZ/
/usr/share/xul-ext/reloadevery/locale/cs-CZ/reloadevery.dtd
/usr/share/xul-ext/reloadevery/locale/de-DE/
/usr/share/xul-ext/reloadevery/locale/de-DE/reloadevery.dtd
/usr/share/xul-ext/reloadevery/locale/en-US/
/usr/share/xul-ext/reloadevery/locale/en-US/reloadevery.dtd
/usr/share/xul-ext/reloadevery/locale/es-ES/
/usr/share/xul-ext/reloadevery/locale/es-ES/reloadevery.dtd
/usr/share/xul-ext/reloadevery/locale/fr-FR/
/usr/share/xul-ext/reloadevery/locale/fr-FR/reloadevery.dtd
/usr/share/xul-ext/reloadevery/locale/it-IT/
/usr/share/xul-ext/reloadevery/locale/it-IT/reloadevery.dtd
/usr/share/xul-ext/reloadevery/locale/ja-JA/
/usr/share/xul-ext/reloadevery/locale/ja-JA/reloadevery.dtd
/usr/share/xul-ext/reloadevery/locale/nl-NL/
/usr/share/xul-ext/reloadevery/locale/nl-NL/reloadevery.dtd
/usr/share/xul-ext/reloadevery/locale/pl-PL/
/usr/share/xul-ext/reloadevery/locale/pl-PL/reloadevery.dtd
/usr/share/xul-ext/reloadevery/locale/pt-BR/
/usr/share/xul-ext/reloadevery/locale/pt-BR/reloadevery.dtd
/usr/share/xul-ext/reloadevery/locale/ru-RU/
/usr/share/xul-ext/reloadevery/locale/ru-RU/reloadevery.dtd
/usr/share/xul-ext/reloadevery/locale/sk-SK/
/usr/share/xul-ext/reloadevery/locale/sk-SK/reloadevery.dtd
/usr/share/xul-ext/reloadevery/locale/zh-CN/
/usr/share/xul-ext/reloadevery/locale/zh-CN/reloadevery.dtd
/usr/share/xul-ext/reloadevery/locale/zh-TW/
/usr/share/xul-ext/reloadevery/locale/zh-TW/reloadevery.dtd