3 files changed, 38 insertions, 29 deletions

diff --git a/browser/base/content/sync/aboutSyncTabs.js b/browser/base/content/sync/aboutSyncTabs.js
index 0c5dbb2d8..f4bb607ea 100644
--- a/browser/base/content/sync/aboutSyncTabs.js
+++ b/browser/base/content/sync/aboutSyncTabs.js
@@ -7,7 +7,6 @@ var Cu = Components.utils;
 Cu.import("resource://services-common/utils.js");
 Cu.import("resource://services-sync/main.js");
 Cu.import("resource:///modules/PlacesUIUtils.jsm");
-Cu.import("resource://gre/modules/AppConstants.jsm");
 Cu.import("resource://gre/modules/PlacesUtils.jsm", this);
 Cu.import("resource://gre/modules/Services.jsm");
 Cu.import("resource://gre/modules/XPCOMUtils.jsm");
@@ -15,10 +14,10 @@ Cu.import("resource://gre/modules/XPCOMUtils.jsm");
 XPCOMUtils.defineLazyModuleGetter(this, "Promise",
                                   "resource://gre/modules/Promise.jsm");
 
-if (AppConstants.MOZ_SERVICES_CLOUDSYNC) {
-  XPCOMUtils.defineLazyModuleGetter(this, "CloudSync",
-                                    "resource://gre/modules/CloudSync.jsm");
-}
+#ifdef MOZ_SERVICES_CLOUDSYNC
+XPCOMUtils.defineLazyModuleGetter(this, "CloudSync",
+                                  "resource://gre/modules/CloudSync.jsm");
+#endif
 
 var RemoteTabViewer = {
   _tabsList: null,
@@ -184,12 +183,16 @@ var RemoteTabViewer = {
       }
     }
 
+#ifdef MOZ_SERVICES_CLOUDSYNC
     if (CloudSync && CloudSync.ready && CloudSync().tabsReady && CloudSync().tabs.hasRemoteTabs()) {
       this._generateCloudSyncTabList()
           .then(complete, complete);
     } else {
       complete();
     }
+#else
+    complete();
+#endif
   },
 
   _clearTabList: function () {
diff --git a/browser/base/jar.mn b/browser/base/jar.mn
index 9cbfe7c15..63ae6c366 100644
--- a/browser/base/jar.mn
+++ b/browser/base/jar.mn
@@ -138,7 +138,7 @@ browser.jar:
         content/browser/pageinfo/permissions.js       (content/pageinfo/permissions.js)
         content/browser/pageinfo/security.js          (content/pageinfo/security.js)
         content/browser/sync/aboutSyncTabs.xul        (content/sync/aboutSyncTabs.xul)
-        content/browser/sync/aboutSyncTabs.js         (content/sync/aboutSyncTabs.js)
+*       content/browser/sync/aboutSyncTabs.js         (content/sync/aboutSyncTabs.js)
         content/browser/sync/aboutSyncTabs.css        (content/sync/aboutSyncTabs.css)
         content/browser/sync/aboutSyncTabs-bindings.xml  (content/sync/aboutSyncTabs-bindings.xml)
         content/browser/sync/setup.xul                (content/sync/setup.xul)
diff --git a/browser/components/sessionstore/content/aboutSessionRestore.js b/browser/components/sessionstore/content/aboutSessionRestore.js
index cc8d2da0b..8a9410aa8 100644
--- a/browser/components/sessionstore/content/aboutSessionRestore.js
+++ b/browser/components/sessionstore/content/aboutSessionRestore.js
@@ -41,7 +41,11 @@ window.onload = function() {
     return;
   }
 
-  gStateObject = JSON.parse(sessionData.value);
+  try {
+    gStateObject = JSON.parse(sessionData.value);
+  } catch (e) {
+    Cu.reportError(e);
+  }
 
   // make sure the data is tracked to be restored in case of a subsequent crash
   var event = document.createEvent("UIEvents");
@@ -68,30 +72,32 @@ function initTreeView() {
   var winLabel = tabList.getAttribute("_window_label");
 
   gTreeData = [];
-  gStateObject.windows.forEach(function(aWinData, aIx) {
-    var winState = {
-      label: winLabel.replace("%S", (aIx + 1)),
-      open: true,
-      checked: true,
-      ix: aIx
-    };
-    winState.tabs = aWinData.tabs.map(function(aTabData) {
-      var entry = aTabData.entries[aTabData.index - 1] || { url: "about:blank" };
-      var iconURL = aTabData.image || null;
-      // don't initiate a connection just to fetch a favicon (see bug 462863)
-      if (/^https?:/.test(iconURL))
-        iconURL = "moz-anno:favicon:" + iconURL;
-      return {
-        label: entry.title || entry.url,
+  if (gStateObject) {
+    gStateObject.windows.forEach(function(aWinData, aIx) {
+      var winState = {
+        label: winLabel.replace("%S", (aIx + 1)),
+        open: true,
         checked: true,
-        src: iconURL,
-        parent: winState
+        ix: aIx
       };
-    });
-    gTreeData.push(winState);
-    for (let tab of winState.tabs)
-      gTreeData.push(tab);
-  }, this);
+      winState.tabs = aWinData.tabs.map(function(aTabData) {
+        var entry = aTabData.entries[aTabData.index - 1] || { url: "about:blank" };
+        var iconURL = aTabData.image || null;
+        // don't initiate a connection just to fetch a favicon (see bug 462863)
+        if (/^https?:/.test(iconURL))
+          iconURL = "moz-anno:favicon:" + iconURL;
+        return {
+          label: entry.title || entry.url,
+          checked: true,
+          src: iconURL,
+          parent: winState
+        };
+      });
+      gTreeData.push(winState);
+      for (let tab of winState.tabs)
+        gTreeData.push(tab);
+    }, this);
+  }
 
   tabList.view = treeView;
   tabList.view.selection.select(0);