diff -r 000000000000 -r 6474c204b198 browser/components/sessionstore/test/browser_456342.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/browser/components/sessionstore/test/browser_456342.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,49 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+const URL = ROOT + "browser_456342_sample.xhtml";
+
+/**
+ * Bug 456342 - Restore values from non-standard input field types.
+ */
+add_task(function test_restore_nonstandard_input_values() {
+  // Add tab with various non-standard input field types.
+  let tab = gBrowser.addTab(URL);
+  let browser = tab.linkedBrowser;
+  yield promiseBrowserLoaded(browser);
+
+  // Fill in form values.
+  let expectedValue = Math.random();
+  yield setFormElementValues(browser, {value: expectedValue});
+
+  // Remove tab and check collected form data.
+  gBrowser.removeTab(tab);
+  let undoItems = JSON.parse(ss.getClosedTabData(window));
+  let savedFormData = undoItems[0].state.formdata;
+
+  let countGood = 0, countBad = 0;
+  for (let id of Object.keys(savedFormData.id)) {
+    if (savedFormData.id[id] == expectedValue) {
+      countGood++;
+    } else {
+      countBad++;
+    }
+  }
+
+  for (let exp of Object.keys(savedFormData.xpath)) {
+    if (savedFormData.xpath[exp] == expectedValue) {
+      countGood++;
+    } else {
+      countBad++;
+    }
+  }
+
+  is(countGood, 4, "Saved text for non-standard input fields");
+  is(countBad,  0, "Didn't save text for ignored field types");
+});
+
+function setFormElementValues(browser, data) {
+  return sendMessage(browser, "ss-test:setFormElementValues", data);
+}