1 files changed, 62 insertions, 0 deletions
diff --git a/browser/components/sessionstore/test/browser_588426.js b/browser/components/sessionstore/test/browser_588426.js
new file mode 100644
index 0000000000..e32867fc6b
--- /dev/null
+++ b/browser/components/sessionstore/test/browser_588426.js
@@ -0,0 +1,62 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+function test() {
+  let state = {
+    windows: [
+      {
+        tabs: [
+          {
+            entries: [{ url: "about:mozilla", triggeringPrincipal_base64 }],
+            hidden: true,
+          },
+          {
+            entries: [{ url: "about:rights", triggeringPrincipal_base64 }],
+            hidden: true,
+          },
+        ],
+      },
+    ],
+  };
+
+  waitForExplicitFinish();
+
+  newWindowWithState(state, function (win) {
+    registerCleanupFunction(() => BrowserTestUtils.closeWindow(win));
+
+    is(win.gBrowser.tabs.length, 2, "two tabs were restored");
+    is(win.gBrowser.visibleTabs.length, 1, "one tab is visible");
+
+    let tab = win.gBrowser.visibleTabs[0];
+    is(
+      tab.linkedBrowser.currentURI.spec,
+      "about:mozilla",
+      "visible tab is about:mozilla"
+    );
+
+    finish();
+  });
+}
+
+function newWindowWithState(state, callback) {
+  let opts = "chrome,all,dialog=no,height=800,width=800";
+  let win = window.openDialog(AppConstants.BROWSER_CHROME_URL, "_blank", opts);
+
+  win.addEventListener(
+    "load",
+    function () {
+      executeSoon(function () {
+        win.addEventListener(
+          "SSWindowStateReady",
+          function () {
+            promiseTabRestored(win.gBrowser.tabs[0]).then(() => callback(win));
+          },
+          { once: true }
+        );
+
+        ss.setWindowState(win, JSON.stringify(state), true);
+      });
+    },
+    { once: true }
+  );
+}