diff --git a/src/lib/network/networkmanager.h b/src/lib/network/networkmanager.h
--- a/src/lib/network/networkmanager.h
+++ b/src/lib/network/networkmanager.h
@@ -55,6 +55,7 @@
     NetworkUrlInterceptor *m_urlInterceptor;
     ExtensionSchemeManager *m_extensionScheme;
     QHash<QString, QWebEngineCertificateError::Error> m_ignoredSslErrors;
+    QHash<QString, QWebEngineCertificateError::Error> m_rejectedSslErrors;
 };
 
 #endif // NETWORKMANAGER_H
diff --git a/src/lib/network/networkmanager.cpp b/src/lib/network/networkmanager.cpp
--- a/src/lib/network/networkmanager.cpp
+++ b/src/lib/network/networkmanager.cpp
@@ -71,6 +71,10 @@
 {
     const QString &host = error.url().host();
 
+    if (m_rejectedSslErrors.contains(host) && m_rejectedSslErrors.value(host) == error.error()) {
+        return false;
+    }
+
     if (m_ignoredSslErrors.contains(host) && m_ignoredSslErrors.value(host) == error.error())
         return true;
 
@@ -88,10 +92,13 @@
     case SslErrorDialog::Yes:
         // TODO: Permanent exceptions
     case SslErrorDialog::OnlyForThisSession:
-        m_ignoredSslErrors[error.url().host()] = error.error();
+        m_ignoredSslErrors[host] = error.error();
         return true;
 
-    case SslErrorDialog::No:
+    case SslErrorDialog::NoForThisSession:
+        m_rejectedSslErrors[host] = error.error();
+        return false;
+
     default:
         return false;
     }
diff --git a/src/lib/network/sslerrordialog.h b/src/lib/network/sslerrordialog.h
--- a/src/lib/network/sslerrordialog.h
+++ b/src/lib/network/sslerrordialog.h
@@ -34,7 +34,7 @@
     Q_OBJECT
 
 public:
-    enum Result { Yes, No, OnlyForThisSession };
+    enum Result { Yes, No, OnlyForThisSession, NoForThisSession };
 
     explicit SslErrorDialog(QWidget* parent = 0);
     ~SslErrorDialog();
diff --git a/src/lib/network/sslerrordialog.cpp b/src/lib/network/sslerrordialog.cpp
--- a/src/lib/network/sslerrordialog.cpp
+++ b/src/lib/network/sslerrordialog.cpp
@@ -63,6 +63,11 @@
         accept();
         break;
 
+    case QDialogButtonBox::NoRole:
+        m_result = NoForThisSession;
+        reject();
+        break;
+
     default:
         m_result = No;
         reject();