--- a/modules/libpref/init/all.js
+++ b/modules/libpref/init/all.js
@@ -2143,26 +2143,23 @@ pref("services.blocklist.addons.collecti
 pref("services.blocklist.addons.checked", 0);
 pref("services.blocklist.plugins.collection", "plugins");
 pref("services.blocklist.plugins.checked", 0);
 pref("services.blocklist.gfx.collection", "gfx");
 pref("services.blocklist.gfx.checked", 0);
 
 // Controls whether signing should be enforced on signature-capable blocklist
 // collections.
-pref("services.blocklist.signing.enforced", false);
-
-// For now, let's keep settings server update out of the release builds
-#ifdef RELEASE_BUILD
-pref("services.blocklist.update_enabled", false);
-pref("security.onecrl.via.amo", true);
-#else
+pref("services.blocklist.signing.enforced", true);
+
+// Enable blocklists via the services settings mechanism
 pref("services.blocklist.update_enabled", true);
+
+// Enable certificate blocklist updates via services settings
 pref("security.onecrl.via.amo", false);
-#endif
 
 
 // Modifier key prefs: default to Windows settings,
 // menu access key = alt, accelerator key = control.
 // Use 17 for Ctrl, 18 for Alt, 224 for Meta, 91 for Win, 0 for none. Mac settings in macprefs.js
 pref("ui.key.accelKey", 17);
 pref("ui.key.menuAccessKey", 18);
 pref("ui.key.generalAccessKey", -1);