diff --git a/toolkit/components/passwordmgr/test/browser/browser_passwordmgr_sort.js b/toolkit/components/passwordmgr/test/browser/browser_passwordmgr_sort.js
index ecdccce9f05..f72c8159305 100644
--- a/toolkit/components/passwordmgr/test/browser/browser_passwordmgr_sort.js
+++ b/toolkit/components/passwordmgr/test/browser/browser_passwordmgr_sort.js
@@ -36,9 +36,6 @@
  * 
  * ***** END LICENSE BLOCK ***** */
 
-const Cc = Components.classes;
-const Ci = Components.interfaces;
-
 function test() {
     waitForExplicitFinish();
 
diff --git a/toolkit/components/passwordmgr/test/browser/browser_passwordmgrcopypwd.js b/toolkit/components/passwordmgr/test/browser/browser_passwordmgrcopypwd.js
index 1fec129a7c2..34d2f8a864f 100644
--- a/toolkit/components/passwordmgr/test/browser/browser_passwordmgrcopypwd.js
+++ b/toolkit/components/passwordmgr/test/browser/browser_passwordmgrcopypwd.js
@@ -35,9 +35,6 @@
  *
  * ***** END LICENSE BLOCK ***** */
 
-const Cc = Components.classes;
-const Ci = Components.interfaces;
-
 function test() {
     waitForExplicitFinish();
 
diff --git a/toolkit/components/passwordmgr/test/browser/browser_passwordmgrdlg.js b/toolkit/components/passwordmgr/test/browser/browser_passwordmgrdlg.js
index 4d1c0e7d63d..3a23d618acc 100644
--- a/toolkit/components/passwordmgr/test/browser/browser_passwordmgrdlg.js
+++ b/toolkit/components/passwordmgr/test/browser/browser_passwordmgrdlg.js
@@ -35,9 +35,6 @@
  * 
  * ***** END LICENSE BLOCK ***** */
 
-const Cc = Components.classes;
-const Ci = Components.interfaces;
-
 function test() {
     waitForExplicitFinish();
 
diff --git a/toolkit/components/startup/tests/browser/browser_bug511456.js b/toolkit/components/startup/tests/browser/browser_bug511456.js
index 8328176cac1..adbc2b2e16f 100644
--- a/toolkit/components/startup/tests/browser/browser_bug511456.js
+++ b/toolkit/components/startup/tests/browser/browser_bug511456.js
@@ -35,9 +35,6 @@
  * 
  * ***** END LICENSE BLOCK ***** */
 
-const Cc = Components.classes;
-const Ci = Components.interfaces;
-
 const PROMPT_URL = "chrome://global/content/commonDialog.xul";
 const TEST_URL = "http://example.com/browser/toolkit/components/startup/tests/browser/beforeunload.html";
 
diff --git a/toolkit/components/startup/tests/browser/browser_bug537449.js b/toolkit/components/startup/tests/browser/browser_bug537449.js
index 92b29a77506..beb62f176ea 100644
--- a/toolkit/components/startup/tests/browser/browser_bug537449.js
+++ b/toolkit/components/startup/tests/browser/browser_bug537449.js
@@ -35,9 +35,6 @@
  * 
  * ***** END LICENSE BLOCK ***** */
 
-const Cc = Components.classes;
-const Ci = Components.interfaces;
-
 const PROMPT_URL = "chrome://global/content/commonDialog.xul";
 const TEST_URL = "http://example.com/browser/toolkit/components/startup/tests/browser/beforeunload.html";
 
diff --git a/toolkit/mozapps/extensions/test/browser/browser_bug523784.js b/toolkit/mozapps/extensions/test/browser/browser_bug523784.js
index 3f162644cea..f6b1a601b4a 100644
--- a/toolkit/mozapps/extensions/test/browser/browser_bug523784.js
+++ b/toolkit/mozapps/extensions/test/browser/browser_bug523784.js
@@ -1,9 +1,6 @@
 /* Any copyright is dedicated to the Public Domain.
    http://creativecommons.org/publicdomain/zero/1.0/ */
 
-const Cc = Components.classes;
-const Ci = Components.interfaces;
-
 const URI_BLOCKLIST_DIALOG = "chrome://mozapps/content/extensions/blocklist.xul";
 
 Components.utils.import("resource://gre/modules/Services.jsm");
@@ -122,4 +119,4 @@ function bug523784_test2(win) {
   args.wrappedJSObject = args;
   Services.ww.openWindow(null, URI_BLOCKLIST_DIALOG, "",
                          "chrome,centerscreen,dialog,titlebar", args);
-}
\ No newline at end of file
+}