diff --git a/browser/modules/BrowserWindowTracker.jsm b/browser/modules/BrowserWindowTracker.jsm
index 6a23f25ad220..49da1ba86108 100644
--- a/browser/modules/BrowserWindowTracker.jsm
+++ b/browser/modules/BrowserWindowTracker.jsm
@@ -40,7 +40,7 @@ function _updateCurrentContentOuterWindowID(browser) {
     return;
   }
 
-  debug("Current window uri=" + browser.currentURI.spec +
+  debug("Current window uri=" + (browser.currentURI && browser.currentURI.spec) +
         " id=" + browser.outerWindowID);
 
   _lastTopLevelWindowID = browser.outerWindowID;
diff --git a/toolkit/content/browser-child.js b/toolkit/content/browser-child.js
index a05a3ee4a49a..cebc8569df3f 100644
--- a/toolkit/content/browser-child.js
+++ b/toolkit/content/browser-child.js
@@ -28,5 +28,5 @@ addEventListener("ImageContentLoaded", function(aEvent) {
 
 // We may not get any responses to Browser:Init if the browser element
 // is torn down too quickly.
-var outerWindowID = content.windowUtils.outerWindowID;
+var outerWindowID = docShell.outerWindowID;
 sendAsyncMessage("Browser:Init", {outerWindowID});
diff --git a/toolkit/content/widgets/browser.xml b/toolkit/content/widgets/browser.xml
index 5d34e2244093..213c8b55c1f6 100644
--- a/toolkit/content/widgets/browser.xml
+++ b/toolkit/content/widgets/browser.xml
@@ -460,7 +460,7 @@
           if (this.isRemoteBrowser) {
             return this._outerWindowID;
           }
-          return this.contentWindow.windowUtils.outerWindowID;
+          return this.docShell.outerWindowID;
         ]]></getter>
       </property>