--- a/toolkit/components/extensions/test/xpcshell/test_ext_privacy.js
+++ b/toolkit/components/extensions/test/xpcshell/test_ext_privacy.js
@@ -779,21 +779,21 @@ add_task(async function test_privacy_oth
     "Setting TLS max version lower than the min version is not allowed."
   );
 
   // Empty value.
   await testSetting(
     "network.tlsVersionRestriction",
     {},
     {
-      "security.tls.version.min": 3,
+      "security.tls.version.min": tlsMinPref,
       "security.tls.version.max": 4,
     },
     {
-      minimum: "TLSv1.2",
+      minimum: tlsMinVer,
       maximum: "TLSv1.3",
     }
   );
 
   await extension.unload();
 
   await promiseShutdownManager();
 });