Editor/tools/firefox-addon-sdk-1.16/test/addons/simple-prefs-regression/app-extension/defaults/preferences/prefs.js

pref("extensions.test-simple-prefs@jetpack.somePreference", "TEST");
pref("extensions.test-simple-prefs@jetpack.myInteger", 8);
pref("extensions.test-simple-prefs@jetpack.myHiddenInt", 5);