diff --git a/dom/html/HTMLInputElement.cpp b/dom/html/HTMLInputElement.cpp
index 74049cce5d0a..8d211759b32c 100644
--- a/dom/html/HTMLInputElement.cpp
+++ b/dom/html/HTMLInputElement.cpp
@@ -6455,7 +6455,7 @@ HTMLInputElement::SetSelectionStart(const Nullable<int32_t>& aSelectionStart,
   }
 
   nsAutoString direction;
-  aRv = GetSelectionDirection(direction);
+  GetSelectionDirection(direction, aRv);
   if (aRv.Failed()) {
     return;
   }
@@ -6507,7 +6507,7 @@ HTMLInputElement::SetSelectionEnd(const Nullable<int32_t>& aSelectionEnd,
   }
 
   nsAutoString direction;
-  aRv = GetSelectionDirection(direction);
+  GetSelectionDirection(direction, aRv);
   if (aRv.Failed()) {
     return;
   }
@@ -6596,14 +6596,6 @@ HTMLInputElement::GetSelectionDirection(nsAString& aDirection, ErrorResult& aRv)
   aRv.Throw(rv);
 }
 
-NS_IMETHODIMP
-HTMLInputElement::GetSelectionDirection(nsAString& aDirection)
-{
-  ErrorResult rv;
-  GetSelectionDirection(aDirection, rv);
-  return rv.StealNSResult();
-}
-
 void
 HTMLInputElement::SetSelectionDirection(const nsAString& aDirection, ErrorResult& aRv)
 {
@@ -6631,14 +6623,6 @@ HTMLInputElement::SetSelectionDirection(const nsAString& aDirection, ErrorResult
   }
 }
 
-NS_IMETHODIMP
-HTMLInputElement::SetSelectionDirection(const nsAString& aDirection)
-{
-  ErrorResult rv;
-  SetSelectionDirection(aDirection, rv);
-  return rv.StealNSResult();
-}
-
 NS_IMETHODIMP
 HTMLInputElement::GetPhonetic(nsAString& aPhonetic)
 {
diff --git a/dom/interfaces/html/nsIDOMHTMLInputElement.idl b/dom/interfaces/html/nsIDOMHTMLInputElement.idl
index 9186f54b7d5d..50b1686d6f76 100644
--- a/dom/interfaces/html/nsIDOMHTMLInputElement.idl
+++ b/dom/interfaces/html/nsIDOMHTMLInputElement.idl
@@ -85,8 +85,6 @@ interface nsIDOMHTMLInputElement : nsISupports
 
   void select();
   void setSelectionRange(in long selectionStart, in long selectionEnd, [optional] in DOMString direction);
-           attribute DOMString             selectionDirection;
-
 
            attribute DOMString             useMap;
   readonly attribute nsIControllers        controllers;