1 files changed, 2 insertions, 0 deletions
diff --git a/netwerk/test/unit_ipc/test_http3_prio_disabled_wrap.js b/netwerk/test/unit_ipc/test_http3_prio_disabled_wrap.js
index 38988cd450..8704484d13 100644
--- a/netwerk/test/unit_ipc/test_http3_prio_disabled_wrap.js
+++ b/netwerk/test/unit_ipc/test_http3_prio_disabled_wrap.js
@@ -4,6 +4,7 @@
 
 registerCleanupFunction(async () => {
   Services.prefs.clearUserPref("network.http.http3.priority");
+  Services.prefs.clearUserPref("network.http.priority_header.enabled");
   http3_clear_prefs();
 });
 
@@ -15,6 +16,7 @@ add_task(async function setup() {
 async function run_test() {
   // test priority urgency and incremental with priority disabled
   Services.prefs.setBoolPref("network.http.http3.priority", false);
+  Services.prefs.setBoolPref("network.http.priority_header.enabled", false);
   run_test_in_child("../unit/test_http3_prio_disabled.js");
   run_next_test(); // only pumps next async task from this file
 }