diff --git a/modules/libpref/init/StaticPrefList.yaml b/modules/libpref/init/StaticPrefList.yaml
index 29da2682196d..620d7ea38ffd 100644
--- a/modules/libpref/init/StaticPrefList.yaml
+++ b/modules/libpref/init/StaticPrefList.yaml
@@ -9436,7 +9436,7 @@
 
 - name: privacy.window.name.update.enabled
   type: bool
-  value: @IS_NIGHTLY_BUILD@
+  value: true
   mirror: always
 
 # By default, the network state isolation is not active when there is a proxy
diff --git a/testing/web-platform/meta/html/browsers/browsing-the-web/history-traversal/unset_context_name.html.ini b/testing/web-platform/meta/html/browsers/browsing-the-web/history-traversal/unset_context_name.html.ini
deleted file mode 100644
index 6fac60f51ed0..000000000000
--- a/testing/web-platform/meta/html/browsers/browsing-the-web/history-traversal/unset_context_name.html.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[unset_context_name.html]
-  prefs: [privacy.window.name.update.enabled:true]
diff --git a/testing/web-platform/meta/html/browsers/windows/clear-window-name.https.html.ini b/testing/web-platform/meta/html/browsers/windows/clear-window-name.https.html.ini
deleted file mode 100644
index 7e5405c6449b..000000000000
--- a/testing/web-platform/meta/html/browsers/windows/clear-window-name.https.html.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[clear-window-name.https.html]
-  prefs: [privacy.window.name.update.enabled:true]
diff --git a/testing/web-platform/meta/html/browsers/windows/restore-window-name-manual.https.html.ini b/testing/web-platform/meta/html/browsers/windows/restore-window-name-manual.https.html.ini
deleted file mode 100644
index bee719504829..000000000000
--- a/testing/web-platform/meta/html/browsers/windows/restore-window-name-manual.https.html.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[restore-window-name-manual.https.html]
-  prefs: [privacy.window.name.update.enabled:true]