--- a/browser/components/places/tests/browser/browser_library_search.js
+++ b/browser/components/places/tests/browser/browser_library_search.js
@@ -144,17 +144,17 @@ function search(aFolderId, aSearchStr, a
   }
 }
 
 /**
  * test() contains window-launching boilerplate that calls this to really kick
  * things off.  Add functions to the testCases array, and this will call them.
  */
 function onLibraryAvailable() {
-  testCases.forEach(function (aTest) aTest());
+  testCases.forEach(aTest => aTest());
 
   gLibrary.close();
   gLibrary = null;
 
   // Cleanup.
   PlacesUtils.tagging.untagURI(PlacesUtils._uri(TEST_URL), ["dummyTag"]);
   PlacesUtils.bookmarks.removeFolderChildren(PlacesUtils.unfiledBookmarksFolderId);
   PlacesTestUtils.clearHistory().then(finish);

--- a/browser/components/places/tests/browser/browser_toolbar_migration.js
+++ b/browser/components/places/tests/browser/browser_toolbar_migration.js
@@ -5,17 +5,19 @@
 /**
  * Tests PersonalToolbar migration path.
  */
 var bg = Cc["@mozilla.org/browser/browserglue;1"].getService(Ci.nsIObserver);
 var gOriginalMigrationVersion;
 const BROWSER_URL = getBrowserURL();
 
 var localStore = {
-  get xulStore() Cc["@mozilla.org/xul/xulstore;1"].getService(Ci.nsIXULStore),
+  get xulStore() {
+    return Cc["@mozilla.org/xul/xulstore;1"].getService(Ci.nsIXULStore);
+  },
 
   getValue: function getValue(aProperty)
   {
     return this.xulStore.getValue(BROWSER_URL, "PersonalToolbar", aProperty);
   },
 
   setValue: function setValue(aProperty, aValue)
   {

--- a/browser/components/places/tests/unit/test_PUIU_makeTransaction.js
+++ b/browser/components/places/tests/unit/test_PUIU_makeTransaction.js
@@ -10,47 +10,57 @@ function waitForBookmarkNotification(aNo
           (!aProperty || aProperty == aData.property)) {
         PlacesUtils.bookmarks.removeObserver(this);
         aCallback(aData);
       }
     },
 
     // nsINavBookmarkObserver
     QueryInterface: XPCOMUtils.generateQI([Ci.nsINavBookmarkObserver]),
-    onBeginUpdateBatch: function onBeginUpdateBatch()
-      this.validate(arguments.callee.name, arguments),
-    onEndUpdateBatch: function onEndUpdateBatch()
-      this.validate(arguments.callee.name, arguments),
+    onBeginUpdateBatch: function onBeginUpdateBatch() {
+      return this.validate(arguments.callee.name, arguments);
+    },
+    onEndUpdateBatch: function onEndUpdateBatch() {
+      return this.validate(arguments.callee.name, arguments);
+    },
     onItemAdded: function onItemAdded(aItemId, aParentId, aIndex, aItemType,
                                       aURI, aTitle)
     {
       return this.validate(arguments.callee.name, { id: aItemId,
                                                     index: aIndex,
                                                     type: aItemType,
                                                     url: aURI ? aURI.spec : null,
                                                     title: aTitle });
     },
-    onItemRemoved: function onItemRemoved()
-      this.validate(arguments.callee.name, arguments),
+    onItemRemoved: function onItemRemoved() {
+      return this.validate(arguments.callee.name, arguments);
+    },
     onItemChanged: function onItemChanged(aItemId, aProperty, aIsAnno,
                                           aNewValue, aLastModified, aItemType)
     {
       return this.validate(arguments.callee.name,
                            { id: aItemId,
-                             get index() PlacesUtils.bookmarks.getItemIndex(this.id),
+                             get index() {
+                               return PlacesUtils.bookmarks.getItemIndex(this.id);
+                             },
                              type: aItemType,
                              property: aProperty,
-                             get url() aItemType == PlacesUtils.bookmarks.TYPE_BOOKMARK ?
-                                                PlacesUtils.bookmarks.getBookmarkURI(this.id).spec :
-                                                null,
-                             get title() PlacesUtils.bookmarks.getItemTitle(this.id),
+                             get url() {
+                               return aItemType == PlacesUtils.bookmarks.TYPE_BOOKMARK ?
+                                      PlacesUtils.bookmarks.getBookmarkURI(this.id).spec :
+                                      null;
+                             },
+                             get title() {
+                               return PlacesUtils.bookmarks.getItemTitle(this.id);
+                             },
                            });
     },
-    onItemVisited: function onItemVisited()
-      this.validate(arguments.callee.name, arguments),
+    onItemVisited: function onItemVisited() {
+      return this.validate(arguments.callee.name, arguments);
+    },
     onItemMoved: function onItemMoved(aItemId, aOldParentId, aOldIndex,
                                       aNewParentId, aNewIndex, aItemType)
     {
       this.validate(arguments.callee.name, { id: aItemId,
                                              index: aNewIndex,
                                              type: aItemType });
     }
   }, false);