diff --git a/conf/librewolf.overrides.cfg.js b/conf/librewolf.overrides.cfg.js
index 5f3b0f3e..4afd5f26 100644
--- a/conf/librewolf.overrides.cfg.js
+++ b/conf/librewolf.overrides.cfg.js
@@ -61,9 +61,12 @@ defaultPref("network.IDN_show_punycode", true);
 defaultPref("reader.parse-on-load.force-enabled", true);
 
 // TRR & ECH
-defaultPref("network.trr.mode", 3);
+// Mode 2 allows fallback to system resolver, 3 is TTR-only
+//defaultPref("network.trr.mode", 3);
+defaultPref("network.trr.mode", 2);
 defaultPref("network.trr.early-AAAA", true);
 defaultPref("network.trr.uri", "https://dns0.eu");
+// NOTE: ECH requires TRR, so mode 2 may not use it.
 defaultPref("network.trr.disable-ECS", false);
 defaultPref("network.dns.echconfig.enabled", true);
 defaultPref("network.dns.use_https_rr_as_altsvc", true);