diff --git a/src/qt/rpcconsole.cpp b/src/qt/rpcconsole.cpp
--- a/src/qt/rpcconsole.cpp
+++ b/src/qt/rpcconsole.cpp
@@ -36,7 +36,6 @@
 #include <QScreen>
 #include <QScrollBar>
 #include <QSettings>
-#include <QSignalMapper>
 #include <QStringList>
 #include <QTime>
 #include <QTimer>
@@ -705,31 +704,14 @@
         peersTableContextMenu->addAction(banAction7d);
         peersTableContextMenu->addAction(banAction365d);
 
-        // Add a signal mapping to allow dynamic context menu arguments. We need
-        // to use int (instead of int64_t), because signal mapper only supports
-        // int or objects, which is okay because max bantime (1 year) is <
-        // int_max.
-        QSignalMapper *signalMapper = new QSignalMapper(this);
-        signalMapper->setMapping(banAction1h, 60 * 60);
-        signalMapper->setMapping(banAction24h, 60 * 60 * 24);
-        signalMapper->setMapping(banAction7d, 60 * 60 * 24 * 7);
-        signalMapper->setMapping(banAction365d, 60 * 60 * 24 * 365);
-        connect(banAction1h, &QAction::triggered, signalMapper,
-                static_cast<void (QSignalMapper::*)()>(&QSignalMapper::map));
-        connect(banAction24h, &QAction::triggered, signalMapper,
-                static_cast<void (QSignalMapper::*)()>(&QSignalMapper::map));
-        connect(banAction7d, &QAction::triggered, signalMapper,
-                static_cast<void (QSignalMapper::*)()>(&QSignalMapper::map));
-        connect(banAction365d, &QAction::triggered, signalMapper,
-                static_cast<void (QSignalMapper::*)()>(&QSignalMapper::map));
-#if (QT_VERSION >= QT_VERSION_CHECK(5, 15, 0))
-        const auto mappedIntEvent = &QSignalMapper::mappedInt;
-#else
-        const auto mappedIntEvent =
-            static_cast<void (QSignalMapper::*)(int)>(&QSignalMapper::mapped);
-#endif
-        connect(signalMapper, mappedIntEvent, this,
-                &RPCConsole::banSelectedNode);
+        connect(banAction1h, &QAction::triggered,
+                [this] { banSelectedNode(60 * 60); });
+        connect(banAction24h, &QAction::triggered,
+                [this] { banSelectedNode(60 * 60 * 24); });
+        connect(banAction7d, &QAction::triggered,
+                [this] { banSelectedNode(60 * 60 * 24 * 7); });
+        connect(banAction365d, &QAction::triggered,
+                [this] { banSelectedNode(60 * 60 * 24 * 365); });
 
         // peer table context menu signals
         connect(ui->peerWidget, &QTableView::customContextMenuRequested, this,
diff --git a/src/qt/transactionview.h b/src/qt/transactionview.h
--- a/src/qt/transactionview.h
+++ b/src/qt/transactionview.h
@@ -22,7 +22,6 @@
 class QLineEdit;
 class QMenu;
 class QModelIndex;
-class QSignalMapper;
 class QTableView;
 QT_END_NAMESPACE
 
@@ -72,7 +71,6 @@
     QLineEdit *amountWidget;
 
     QMenu *contextMenu;
-    QSignalMapper *mapperThirdPartyTxUrls;
 
     QFrame *dateRangeWidget;
     QDateTimeEdit *dateFrom;
diff --git a/src/qt/transactionview.cpp b/src/qt/transactionview.cpp
--- a/src/qt/transactionview.cpp
+++ b/src/qt/transactionview.cpp
@@ -28,7 +28,6 @@
 #include <QMenu>
 #include <QPoint>
 #include <QScrollBar>
-#include <QSignalMapper>
 #include <QTableView>
 #include <QTimer>
 #include <QUrl>
@@ -179,19 +178,6 @@
     contextMenu->addAction(abandonAction);
     contextMenu->addAction(editLabelAction);
 
-    mapperThirdPartyTxUrls = new QSignalMapper(this);
-
-    // Connect actions
-#if (QT_VERSION >= QT_VERSION_CHECK(5, 15, 0))
-    const auto mappedStringEvent = &QSignalMapper::mappedString;
-#else
-    const auto mappedStringEvent =
-        static_cast<void (QSignalMapper::*)(const QString &)>(
-            &QSignalMapper::mapped);
-#endif
-    connect(mapperThirdPartyTxUrls, mappedStringEvent, this,
-            &TransactionView::openThirdPartyTxUrl);
-
     connect(dateWidget,
             static_cast<void (QComboBox::*)(int)>(&QComboBox::activated), this,
             &TransactionView::chooseDate);
@@ -281,8 +267,8 @@
             QStringList listUrls = GUIUtil::splitSkipEmptyParts(
                 _model->getOptionsModel()->getThirdPartyTxUrls(), "|");
             for (int i = 0; i < listUrls.size(); ++i) {
-                QString host =
-                    QUrl(listUrls[i].trimmed(), QUrl::StrictMode).host();
+                QString url = listUrls[i].trimmed();
+                QString host = QUrl(url, QUrl::StrictMode).host();
                 if (!host.isEmpty()) {
                     // use host as menu item label
                     QAction *thirdPartyTxUrlAction = new QAction(host, this);
@@ -291,11 +277,7 @@
                     }
                     contextMenu->addAction(thirdPartyTxUrlAction);
                     connect(thirdPartyTxUrlAction, &QAction::triggered,
-                            mapperThirdPartyTxUrls,
-                            static_cast<void (QSignalMapper::*)()>(
-                                &QSignalMapper::map));
-                    mapperThirdPartyTxUrls->setMapping(thirdPartyTxUrlAction,
-                                                       listUrls[i].trimmed());
+                            [this, url] { openThirdPartyTxUrl(url); });
                 }
             }
         }