--- a/browser/locales/en-US/chrome/browser/browser.dtd
+++ b/browser/locales/en-US/chrome/browser/browser.dtd
@@ -738,17 +738,17 @@ you can use these alternative items. Oth
 <!ENTITY editBookmark.done.label                     "Done">
 <!ENTITY editBookmark.removeBookmark.accessKey       "R">
 
 <!-- LOCALIZATION NOTE (identity.securityView.label)
      This is the header of the security subview in the Site Identity panel. -->
 <!ENTITY identity.securityView.label "Site Security">
 
 <!ENTITY identity.connectionSecure "Secure Connection">
-<!ENTITY identity.connectionNotSecure "Connection is Not Secure">
+<!ENTITY identity.connectionNotSecure "Connection Is Not Secure">
 <!ENTITY identity.connectionFile "This page is stored on your computer.">
 <!ENTITY identity.connectionVerified2 "You are securely connected to this site, owned by:">
 <!ENTITY identity.connectionInternal "This is a secure &brandShortName; page.">
 <!ENTITY identity.extensionPage "This page is loaded from an extension.">
 <!ENTITY identity.insecureLoginForms2 "Logins entered on this page could be compromised.">
 
 <!-- Strings for connection state warnings. -->
 <!ENTITY identity.activeBlocked "&brandShortName; has blocked parts of this page that are not secure.">