diff --git a/toolkit/content/widgets/browser.xml b/toolkit/content/widgets/browser.xml
index 7ff8434bf83..b32b9a5355d 100644
--- a/toolkit/content/widgets/browser.xml
+++ b/toolkit/content/widgets/browser.xml
@@ -181,7 +181,6 @@
               catch (e) {
               }
             }
-            this.mIconURL = null;
             try {
               this.userTypedClear++;
               this.webNavigation.loadURI(aURI, aFlags, aReferrerURI, aPostData, null);