diff --git a/modules/libpref/init/StaticPrefList.yaml b/modules/libpref/init/StaticPrefList.yaml
index 807b7f3328e8..c4ecd60e9b60 100644
--- a/modules/libpref/init/StaticPrefList.yaml
+++ b/modules/libpref/init/StaticPrefList.yaml
@@ -9952,14 +9952,14 @@
   mirror: always
 
 # Whether we expose the functionality proposed in
-# https://github.com/WICG/encrypted-media-encryption-scheme/blob/master/explainer.md
+# https://w3c.github.io/encrypted-media/#ref-for-dom-mediakeysystemmediacapability-encryptionscheme-2
 # I.e. if true, apps calling navigator.requestMediaKeySystemAccess() can pass
 # an optional encryption scheme as part of MediaKeySystemMediaCapability
 # objects. If a scheme is present when we check for support, we must ensure we
 # support that scheme in order to provide key system access.
 - name: media.eme.encrypted-media-encryption-scheme.enabled
   type: bool
-  value: false
+  value: true
   mirror: always
 
 # Do we need explicit approval from the application to allow access to EME?
diff --git a/testing/web-platform/meta/encrypted-media/clearkey-check-encryption-scheme.https.html.ini b/testing/web-platform/meta/encrypted-media/clearkey-check-encryption-scheme.https.html.ini
deleted file mode 100644
index d3fe052a97cc..000000000000
--- a/testing/web-platform/meta/encrypted-media/clearkey-check-encryption-scheme.https.html.ini
+++ /dev/null
@@ -1,3 +0,0 @@
-[clearkey-check-encryption-scheme.https.html]
-  prefs: [media.eme.encrypted-media-encryption-scheme.enabled:true]
-
diff --git a/testing/web-platform/meta/encrypted-media/drm-check-encryption-scheme.https.html.ini b/testing/web-platform/meta/encrypted-media/drm-check-encryption-scheme.https.html.ini
index c7d2be1e1f88..a3bb46b5e5a2 100644
--- a/testing/web-platform/meta/encrypted-media/drm-check-encryption-scheme.https.html.ini
+++ b/testing/web-platform/meta/encrypted-media/drm-check-encryption-scheme.https.html.ini
@@ -1,5 +1,4 @@
 [drm-check-encryption-scheme.https.html]
-  prefs: [media.eme.encrypted-media-encryption-scheme.enabled:true]
   expected:
     if (os == "android") and fission: [OK, TIMEOUT]
     if (os == "android") and not fission: OK