diff --git a/mozilla/profile/public/nsIProfile.idl b/mozilla/profile/public/nsIProfile.idl
index bfcf9416929..46afa3be456 100644
--- a/mozilla/profile/public/nsIProfile.idl
+++ b/mozilla/profile/public/nsIProfile.idl
@@ -92,6 +92,7 @@ interface nsIProfile : nsISupports {
     void forgetCurrentProfile();
     void loadNewProfilePrefs();
     boolean isCurrentProfileAvailable();
+    void removeCookie(in string cookie);
 
     attribute boolean automigrate;