diff --git a/rssguard.pro b/rssguard.pro
index 8bad137fc..bdffc17de 100755
--- a/rssguard.pro
+++ b/rssguard.pro
@@ -60,7 +60,7 @@ DEFINES	    *= QT_USE_QSTRINGBUILDER
 
 message(rssguard: Welcome RSS Guard qmake script.)
 
-lessThan(QT_MAJOR_VERSION, 5)|lessThan(QT_MINOR_VERSION, 5) {
+lessThan(QT_MAJOR_VERSION, 5)|lessThan(QT_MINOR_VERSION, 7) {
   error(rssguard: At least Qt 5.7.0 is required.)
 }
 
diff --git a/src/gui/dialogs/formmain.ui b/src/gui/dialogs/formmain.ui
index 664f9f89e..f3b00c133 100755
--- a/src/gui/dialogs/formmain.ui
+++ b/src/gui/dialogs/formmain.ui
@@ -32,9 +32,6 @@
       <property name="currentIndex">
        <number>-1</number>
       </property>
-      <property name="documentMode">
-       <bool>false</bool>
-      </property>
       <property name="movable">
        <bool>true</bool>
       </property>
diff --git a/src/gui/feedmessageviewer.cpp b/src/gui/feedmessageviewer.cpp
index 93866c51d..7a1fb15c0 100755
--- a/src/gui/feedmessageviewer.cpp
+++ b/src/gui/feedmessageviewer.cpp
@@ -258,7 +258,7 @@ void FeedMessageViewer::createConnections() {
 
   // Message openers.
   connect(m_messagesView, SIGNAL(openMessagesInNewspaperView(RootItem*,QList<Message>)),
-          qApp->mainForm()->tabWidget(), SLOT(addNewspaperView(RootItem*,QList<Message>));
+          qApp->mainForm()->tabWidget(), SLOT(addNewspaperView(RootItem*,QList<Message>)));
   connect(m_feedsView, SIGNAL(openMessagesInNewspaperView(RootItem*,QList<Message>)),
           qApp->mainForm()->tabWidget(), SLOT(addNewspaperView(RootItem*,QList<Message>)));
 
@@ -347,6 +347,8 @@ void FeedMessageViewer::initialize() {
   m_toolBarMessages->setAllowedAreas(Qt::TopToolBarArea);
   m_toolBarMessages->loadChangeableActions();
 
+  m_messagesBrowser->clear();
+
   // Now refresh visual setup.
   refreshVisualProperties();
 }
diff --git a/src/gui/tabbar.cpp b/src/gui/tabbar.cpp
index c55be72b5..136ab80c9 100755
--- a/src/gui/tabbar.cpp
+++ b/src/gui/tabbar.cpp
@@ -131,16 +131,13 @@ void TabBar::mouseDoubleClickEvent(QMouseEvent *event) {
     // NOTE: This needs to be done here because
     // destination does not know the original event.
     if (event->button() & Qt::LeftButton && qApp->settings()->value(GROUP(GUI), SETTING(GUI::TabCloseDoubleClick)).toBool()) {
-      if (tabType(tab_index) == TabBar::Closable) {
+      if ((tabType(tab_index) & (TabBar::Closable | TabBar::DownloadManager)) > 0) {
         // This tab is closable, so we can close it.
         emit tabCloseRequested(tab_index);
       }
     }
   }
-  // Check if new tab should be opened with initial web browser.
-  // NOTE: This check could be unnecesary here and should be done in
-  // destination object but we keep it here for consistency.
-  else if (qApp->settings()->value(GROUP(GUI), SETTING(GUI::TabNewDoubleClick)).toBool()) {
+  else {
     emit emptySpaceDoubleClicked();
   }
 }
diff --git a/src/gui/tabwidget.cpp b/src/gui/tabwidget.cpp
index 1101d06b0..b7362ef4e 100755
--- a/src/gui/tabwidget.cpp
+++ b/src/gui/tabwidget.cpp
@@ -129,6 +129,7 @@ void TabWidget::tabRemoved(int index) {
 
 void TabWidget::createConnections() {
   connect(tabBar(), SIGNAL(tabCloseRequested(int)), this, SLOT(closeTab(int)));
+  connect(tabBar(), SIGNAL(emptySpaceDoubleClicked()), this, SLOT(addEmptyBrowser()));
   connect(tabBar(), SIGNAL(tabMoved(int,int)), this, SLOT(fixContentsAfterMove(int,int)));
 }
 
diff --git a/src/gui/webbrowser.cpp b/src/gui/webbrowser.cpp
index 2a4ace892..3d9a322e8 100755
--- a/src/gui/webbrowser.cpp
+++ b/src/gui/webbrowser.cpp
@@ -88,7 +88,6 @@ WebBrowser::WebBrowser(QWidget *parent) : TabContent(parent),
 
   createConnections();
   reloadFontSettings();
-  clear();
 }
 
 WebBrowser::~WebBrowser() {
@@ -175,7 +174,7 @@ void WebBrowser::onTitleChanged(const QString &new_title) {
 }
 
 void WebBrowser::onIconChanged(const QIcon &icon) {
-  emit iconChanged(m_index, m_webView->icon());
+  emit iconChanged(m_index, icon);
 }
 
 void WebBrowser::initializeLayout() {