diff --git a/src/plugins/coreplugin/welcomemode.cpp b/src/plugins/coreplugin/welcomemode.cpp
index 21a25471101..8510f289343 100644
--- a/src/plugins/coreplugin/welcomemode.cpp
+++ b/src/plugins/coreplugin/welcomemode.cpp
@@ -151,6 +151,8 @@ WelcomeMode::WelcomeMode() :
 
     l->addWidget(m_d->m_webview);
     m_d->m_webview->setAcceptDrops(false);
+    m_d->m_webview->settings()->setAttribute(QWebSettings::PluginsEnabled, false);
+    m_d->m_webview->settings()->setAttribute(QWebSettings::JavaEnabled, false);
 
 #else
     m_d->m_label->setWordWrap(true);
diff --git a/src/shared/help/helpviewer.cpp b/src/shared/help/helpviewer.cpp
index b22726da610..b4319e13cb4 100644
--- a/src/shared/help/helpviewer.cpp
+++ b/src/shared/help/helpviewer.cpp
@@ -216,6 +216,8 @@ bool HelpPage::acceptNavigationRequest(QWebFrame *,
 HelpViewer::HelpViewer(QHelpEngine *engine, CentralWidget *parent)
     : QWebView(parent), helpEngine(engine), parentWidget(parent)
 {    
+    settings()->setAttribute(QWebSettings::PluginsEnabled, false);
+    settings()->setAttribute(QWebSettings::JavaEnabled, false);
     setPage(new HelpPage(parent, helpEngine, this));
 
     page()->setNetworkAccessManager(new HelpNetworkAccessManager(engine, this));