/etc/xul-ext/reloadevery.js is in xul-ext-reloadevery 28.0.2-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 | // Place your preferences for xul-ext-reloadevery in this file.
// You can override here the preferences specified in
// /usr/share/xul-ext/reloadevery/defaults/preferences/reloadevery.js
|