diff --git a/security/manager/ssl/nsNSSCallbacks.cpp b/security/manager/ssl/nsNSSCallbacks.cpp
index 2dc48c9f4c..0a7b84d787 100644
--- a/security/manager/ssl/nsNSSCallbacks.cpp
+++ b/security/manager/ssl/nsNSSCallbacks.cpp
@@ -722,6 +722,15 @@ nsCString getSignatureName(uint32_t aSignatureScheme) {
     case ssl_sig_rsa_pkcs1_sha1md5:
       signatureName = "RSA-PKCS1-SHA1MD5"_ns;
       break;
+    case ssl_sig_mldsa44:
+      signatureName = "ML-DSA-44"_ns;
+      break;
+    case ssl_sig_mldsa65:
+      signatureName = "ML-DSA-65"_ns;
+      break;
+    case ssl_sig_mldsa87:
+      signatureName = "ML-DSA-87"_ns;
+      break;
     // All other groups are not enabled in Firefox. See sEnabledSignatureSchemes
     // in nsNSSIOLayer.cpp.
     default:
@@ -1061,6 +1070,13 @@ void HandshakeCallback(PRFileDesc* fd, void* client_data) {
           glean::ssl::auth_ecdsa_curve_full.AccumulateSingleSample(
               ECCCurve(channelInfo.authKeyBits));
           break;
+      case ssl_auth_mldsa44:
+      case ssl_auth_mldsa65:
+      case ssl_auth_mldsa87:
+          /* TODO: add auth_mldsa_key_size_full in ssl/metrics.yaml
+          glean::ssl::auth_mldsa_key_size_full.AccumulateSingleSample(
+              NonECCKeySize(channelInfo.authKeyBits)); */
+          break;
         default:
           MOZ_CRASH("impossible auth algorithm");
           break;
diff --git a/security/manager/ssl/nsNSSIOLayer.cpp b/security/manager/ssl/nsNSSIOLayer.cpp
index b1a5f5c2df..7443011b13 100644
--- a/security/manager/ssl/nsNSSIOLayer.cpp
+++ b/security/manager/ssl/nsNSSIOLayer.cpp
@@ -1300,6 +1300,9 @@ static PRFileDesc* nsSSLIOLayerImportFD(PRFileDesc* fd,
 // Please change getSignatureName in nsNSSCallbacks.cpp when changing the list
 // here. See NOTE at SSL_SignatureSchemePrefSet call site.
 static const SSLSignatureScheme sEnabledSignatureSchemes[] = {
+    ssl_sig_mldsa87,
+    ssl_sig_mldsa65,
+    ssl_sig_mldsa44,
     ssl_sig_ecdsa_secp256r1_sha256,
     ssl_sig_ecdsa_secp384r1_sha384,
     ssl_sig_ecdsa_secp521r1_sha512,