diff --git a/browser/base/content/content.js b/browser/base/content/content.js
index 25f8c25199a5..b6699a474849 100644
--- a/browser/base/content/content.js
+++ b/browser/base/content/content.js
@@ -99,7 +99,7 @@ var handleContentContextMenu = function (event) {
   Services.obs.notifyObservers(subject, "content-contextmenu", null);
 
   let doc = event.target.ownerDocument;
-  let docLocation = doc.location.href;
+  let docLocation = doc.location ? doc.location.href : undefined;
   let charSet = doc.characterSet;
   let baseURI = doc.baseURI;
   let referrer = doc.referrer;
@@ -1264,4 +1264,4 @@ var PageInfoListener = {
     return text.replace(endRE, "");
   }
 };
-PageInfoListener.init();
\ No newline at end of file
+PageInfoListener.init();