diff --git a/modules/libpref/init/StaticPrefList.yaml b/modules/libpref/init/StaticPrefList.yaml
index bd42d4535df6..025ebaf80ea6 100644
--- a/modules/libpref/init/StaticPrefList.yaml
+++ b/modules/libpref/init/StaticPrefList.yaml
@@ -5672,7 +5672,7 @@
 # Is support for CSS backdrop-filter enabled?
 - name: layout.css.backdrop-filter.enabled
   type: bool
-  value: false
+  value: @IS_EARLY_BETA_OR_EARLIER@
   mirror: always
 
 # Is support for CSS conic-gradient enabled?