diff --git a/dom/base/WebKitCSSMatrix.cpp b/dom/base/WebKitCSSMatrix.cpp
index 003fdfea30..15ca6ba776 100644
--- a/dom/base/WebKitCSSMatrix.cpp
+++ b/dom/base/WebKitCSSMatrix.cpp
@@ -20,8 +20,7 @@ static const double sRadPerDegree = 2.0 * M_PI / 360.0;
 bool
 WebKitCSSMatrix::FeatureEnabled(JSContext* aCx, JSObject* aObj)
 {
-  return Preferences::GetBool("layout.css.DOMMatrix.enabled", false) &&
-         Preferences::GetBool("layout.css.prefixes.webkit", false);
+  return Preferences::GetBool("layout.css.prefixes.webkit", false);
 }
 
 already_AddRefed<WebKitCSSMatrix>
diff --git a/modules/libpref/init/all.js b/modules/libpref/init/all.js
index 85d5359f9a..270a58ef01 100644
--- a/modules/libpref/init/all.js
+++ b/modules/libpref/init/all.js
@@ -2501,15 +2501,6 @@ pref("layout.css.scroll-snap.prediction-sensitivity", "0.750");
 // Is support for basic shapes in clip-path enabled?
 pref("layout.css.clip-path-shapes.enabled", true);
 
-// Is support for DOMPoint enabled?
-pref("layout.css.DOMPoint.enabled", true);
-
-// Is support for DOMQuad enabled?
-pref("layout.css.DOMQuad.enabled", true);
-
-// Is support for DOMMatrix enabled?
-pref("layout.css.DOMMatrix.enabled", true);
-
 // Is support for GeometryUtils.getBoxQuads enabled?
 pref("layout.css.getBoxQuads.enabled", true);