diff --git a/security/manager/ssl/nsNSSIOLayer.cpp b/security/manager/ssl/nsNSSIOLayer.cpp
--- a/security/manager/ssl/nsNSSIOLayer.cpp
+++ b/security/manager/ssl/nsNSSIOLayer.cpp
@@ -1256,13 +1256,10 @@
   // success of this function.
   PRFileDesc* sslSock = SSL_ImportFD(nullptr, fd);
   if (!sslSock) {
     return nullptr;
   }
-  if (SSL_SetPKCS11PinArg(sslSock, infoObject) != SECSuccess) {
-    return nullptr;
-  }
   if (SSL_HandshakeCallback(sslSock, HandshakeCallback, infoObject) !=
       SECSuccess) {
     return nullptr;
   }
   if (SSL_SecretCallback(sslSock, SecretCallback, infoObject) != SECSuccess) {