--- a/browser/base/content/test/statuspanel/browser.ini
+++ b/browser/base/content/test/statuspanel/browser.ini
@@ -1,5 +1,7 @@
 [DEFAULT]
 support-files =
   head.js
 
 [browser_show_statuspanel_twice.js]
+[browser_show_statuspanel_idn.js]
+skip-if = webrender && verify

new file mode 100644
--- /dev/null
+++ b/browser/base/content/test/statuspanel/browser_show_statuspanel_idn.js
@@ -0,0 +1,23 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+const TEST_PAGE_URL = encodeURI(`data:text/html;charset=utf-8,<a id="foo" href="http://nic.xn--rhqv96g/">abc</a><span id="bar">def</span>`);
+const TEST_STATUS_TEXT = "nic.\u4E16\u754C";
+
+/**
+ * Test that if the StatusPanel displays an IDN
+ * (Bug 1450538).
+ */
+add_task(async function test_show_statuspanel_twice() {
+  let tab = await BrowserTestUtils.openNewForegroundTab(gBrowser, TEST_PAGE_URL);
+
+  let promise = promiseStatusPanelShown(window, TEST_STATUS_TEXT);
+  ContentTask.spawn(tab.linkedBrowser, null, async () => {
+    content.document.links[0].focus();
+  });
+  await promise;
+
+  await BrowserTestUtils.removeTab(tab);
+});