<?xml version="1.0"?> <window xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"> <browser remote="false" /> <script> var { Services } = ChromeUtils.import("resource://gre/modules/Services.jsm"); document.querySelector('browser').loadURI('chrome://zotero-unit/content/hyphenationTestContent.html', { triggeringPrincipal: Services.scriptSecurityManager.getSystemPrincipal() }); </script> </window>