diff --git a/dom/webidl/InputEvent.webidl b/dom/webidl/InputEvent.webidl
index 95b3baca6dfe..8c6ef595917a 100644
--- a/dom/webidl/InputEvent.webidl
+++ b/dom/webidl/InputEvent.webidl
@@ -14,7 +14,6 @@ interface InputEvent : UIEvent
 
   readonly attribute boolean       isComposing;
 
-  [Pref="dom.inputevent.inputtype.enabled"]
   readonly attribute DOMString inputType;
 
   [NeedsCallerType, Pref="dom.inputevent.data.enabled"]
diff --git a/modules/libpref/init/StaticPrefList.yaml b/modules/libpref/init/StaticPrefList.yaml
index f4c4c3daf76f..b231a3c1775f 100644
--- a/modules/libpref/init/StaticPrefList.yaml
+++ b/modules/libpref/init/StaticPrefList.yaml
@@ -2048,12 +2048,6 @@
   value: true
   mirror: always
 
-# Is support for InputEvent.inputType enabled?
-- name: dom.inputevent.inputtype.enabled
-  type: bool
-  value: true
-  mirror: always
-
 # Whether to allow or disallow web apps to cancel `beforeinput` events caused
 # by MozEditableElement#setUserInput() which is used by autocomplete, autofill
 # and password manager.