diff -r 000000000000 -r 6474c204b198 browser/components/tabview/test/browser_tabview_bug589324.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/browser/components/tabview/test/browser_tabview_bug589324.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,89 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+const DUMMY_PAGE_URL = "http://mochi.test:8888/browser/browser/components/tabview/test/dummy_page.html";
+const DUMMY_PAGE_URL_2 = "http://mochi.test:8888/";
+
+let state = {
+  windows: [{
+    tabs: [{
+      entries: [{ url: DUMMY_PAGE_URL }],
+      hidden: true,
+      attributes: {},
+      extData: {
+        "tabview-tab":
+          '{"bounds":{"left":21,"top":29,"width":204,"height":153},' +
+          '"userSize":null,"url":"' + DUMMY_PAGE_URL + '","groupID":1,' + 
+          '"imageData":null,"title":null}'
+      }
+    },{
+      entries: [{ url: DUMMY_PAGE_URL_2 }],
+      hidden: false,
+      attributes: {},
+      extData: {
+        "tabview-tab": 
+          '{"bounds":{"left":315,"top":29,"width":111,"height":84},' + 
+          '"userSize":null,"url":"' + DUMMY_PAGE_URL_2 + '","groupID":2,' + 
+          '"imageData":null,"title":null}'
+      },
+    }],
+    selected:2,
+    _closedTabs: [],
+    extData: {
+      "tabview-groups": '{"nextID":3,"activeGroupId":2}',
+      "tabview-group": 
+        '{"1":{"bounds":{"left":15,"top":5,"width":280,"height":232},' + 
+        '"userSize":null,"title":"","id":1},' + 
+        '"2":{"bounds":{"left":309,"top":5,"width":267,"height":226},' + 
+        '"userSize":null,"title":"","id":2}}',
+      "tabview-ui": '{"pageBounds":{"left":0,"top":0,"width":788,"height":548}}'
+    }, sizemode:"normal"
+  }]
+};
+
+function test() {
+  waitForExplicitFinish();
+
+  registerCleanupFunction(function () {
+    Services.prefs.clearUserPref("browser.sessionstore.restore_hidden_tabs");
+  });
+
+  Services.prefs.setBoolPref("browser.sessionstore.restore_hidden_tabs", false);
+
+  testTabSwitchAfterRestore(function () {
+    Services.prefs.setBoolPref("browser.sessionstore.restore_hidden_tabs", true);
+    testTabSwitchAfterRestore(finish);
+  });
+}
+
+function testTabSwitchAfterRestore(callback) {
+  newWindowWithState(state, function (win) {
+    registerCleanupFunction(function () win.close());
+
+    let [firstTab, secondTab] = win.gBrowser.tabs;
+    is(firstTab.linkedBrowser.currentURI.spec, DUMMY_PAGE_URL,
+       "The url of first tab url is dummy_page.html");
+
+    // check the hidden state of both tabs.
+    ok(firstTab.hidden, "The first tab is hidden");
+    ok(!secondTab.hidden, "The second tab is not hidden");
+    is(secondTab, win.gBrowser.selectedTab, "The second tab is selected");
+
+    // when the second tab is hidden, Panorama should be initialized and
+    // the first tab should be visible.
+    let container = win.gBrowser.tabContainer;
+    container.addEventListener("TabHide", function onTabHide() {
+      container.removeEventListener("TabHide", onTabHide, false);
+
+      ok(win.TabView.getContentWindow(), "Panorama is loaded");
+      ok(!firstTab.hidden, "The first tab is not hidden");
+      is(firstTab, win.gBrowser.selectedTab, "The first tab is selected");
+      ok(secondTab.hidden, "The second tab is hidden");
+
+      callback();
+    }, false);
+
+    // switch to another tab
+    win.switchToTabHavingURI(DUMMY_PAGE_URL);
+  });
+}