/usr/share/xul-ext/form-history-control/chrome/locale/ is in xul-ext-form-history-control 1.4.0.6-1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/xul-ext/form-history-control/chrome/locale/cs/
/usr/share/xul-ext/form-history-control/chrome/locale/cs/formhistory.dtd
/usr/share/xul-ext/form-history-control/chrome/locale/cs/formhistory.properties
/usr/share/xul-ext/form-history-control/chrome/locale/cs/keybinding.properties
/usr/share/xul-ext/form-history-control/chrome/locale/da/
/usr/share/xul-ext/form-history-control/chrome/locale/da/formhistory.dtd
/usr/share/xul-ext/form-history-control/chrome/locale/da/formhistory.properties
/usr/share/xul-ext/form-history-control/chrome/locale/da/keybinding.properties
/usr/share/xul-ext/form-history-control/chrome/locale/de/
/usr/share/xul-ext/form-history-control/chrome/locale/de/formhistory.dtd
/usr/share/xul-ext/form-history-control/chrome/locale/de/formhistory.properties
/usr/share/xul-ext/form-history-control/chrome/locale/de/keybinding.properties
/usr/share/xul-ext/form-history-control/chrome/locale/en-US/
/usr/share/xul-ext/form-history-control/chrome/locale/en-US/formhistory.dtd
/usr/share/xul-ext/form-history-control/chrome/locale/en-US/formhistory.properties
/usr/share/xul-ext/form-history-control/chrome/locale/en-US/keybinding.properties
/usr/share/xul-ext/form-history-control/chrome/locale/es-ES/
/usr/share/xul-ext/form-history-control/chrome/locale/es-ES/formhistory.dtd
/usr/share/xul-ext/form-history-control/chrome/locale/es-ES/formhistory.properties
/usr/share/xul-ext/form-history-control/chrome/locale/es-ES/keybinding.properties
/usr/share/xul-ext/form-history-control/chrome/locale/fr/
/usr/share/xul-ext/form-history-control/chrome/locale/fr/formhistory.dtd
/usr/share/xul-ext/form-history-control/chrome/locale/fr/formhistory.properties
/usr/share/xul-ext/form-history-control/chrome/locale/fr/keybinding.properties
/usr/share/xul-ext/form-history-control/chrome/locale/nl/
/usr/share/xul-ext/form-history-control/chrome/locale/nl/formhistory.dtd
/usr/share/xul-ext/form-history-control/chrome/locale/nl/formhistory.properties
/usr/share/xul-ext/form-history-control/chrome/locale/nl/keybinding.properties
/usr/share/xul-ext/form-history-control/chrome/locale/pt-BR/
/usr/share/xul-ext/form-history-control/chrome/locale/pt-BR/formhistory.dtd
/usr/share/xul-ext/form-history-control/chrome/locale/pt-BR/formhistory.properties
/usr/share/xul-ext/form-history-control/chrome/locale/pt-BR/keybinding.properties
/usr/share/xul-ext/form-history-control/chrome/locale/ru/
/usr/share/xul-ext/form-history-control/chrome/locale/ru/formhistory.dtd
/usr/share/xul-ext/form-history-control/chrome/locale/ru/formhistory.properties
/usr/share/xul-ext/form-history-control/chrome/locale/ru/keybinding.properties
/usr/share/xul-ext/form-history-control/chrome/locale/tr/
/usr/share/xul-ext/form-history-control/chrome/locale/tr/formhistory.dtd
/usr/share/xul-ext/form-history-control/chrome/locale/tr/formhistory.properties
/usr/share/xul-ext/form-history-control/chrome/locale/tr/keybinding.properties
/usr/share/xul-ext/form-history-control/chrome/locale/zh-CN/
/usr/share/xul-ext/form-history-control/chrome/locale/zh-CN/formhistory.dtd
/usr/share/xul-ext/form-history-control/chrome/locale/zh-CN/formhistory.properties
/usr/share/xul-ext/form-history-control/chrome/locale/zh-CN/keybinding.properties