diff --git a/plugins/highlight/highlightconfig.cpp b/plugins/highlight/highlightconfig.cpp
--- a/plugins/highlight/highlightconfig.cpp
+++ b/plugins/highlight/highlightconfig.cpp
@@ -77,7 +77,7 @@
 {
     m_filters.clear(); //clear filters
 
-    const QString filename = QStandardPaths::writableLocation(QStandardPaths::DataLocation) + QLatin1Char('/') + QStringLiteral("highlight.xml");
+    const QString filename = QStandardPaths::writableLocation(QStandardPaths::AppDataLocation) + QLatin1Char('/') + QStringLiteral("highlight.xml");
     if (filename.isEmpty()) {
         return;
     }
@@ -135,7 +135,7 @@
 
 void HighlightConfig::save()
 {
-    const QString fileName = QStandardPaths::writableLocation(QStandardPaths::DataLocation) + QLatin1Char('/') + QStringLiteral("highlight.xml");
+    const QString fileName = QStandardPaths::writableLocation(QStandardPaths::AppDataLocation) + QLatin1Char('/') + QStringLiteral("highlight.xml");
 
     QSaveFile file(fileName);
     if (file.open(QIODevice::WriteOnly)) {
diff --git a/plugins/statistics/statisticsdialog.h b/plugins/statistics/statisticsdialog.h
--- a/plugins/statistics/statisticsdialog.h
+++ b/plugins/statistics/statisticsdialog.h
@@ -20,7 +20,7 @@
 
 #include <qwidget.h>
 #include <kdialog.h>
-#include <kurl.h>
+#include <QUrl>
 #include "kopetemetacontact.h"
 
 class QStringList;
@@ -89,7 +89,7 @@
      * We manage the openUrlRequestDelayed signal from the generalHTMLPart->browserExtension() in order to
      * generate requested pages on the fly.
      */
-    void slotOpenURLRequest(const KUrl &url, const KParts::OpenUrlArguments &, const KParts::BrowserArguments &);
+    void slotOpenURLRequest(const QUrl &url, const KParts::OpenUrlArguments &, const KParts::BrowserArguments &);
 
     /**
      * Color the calendar cells to show statuses across entire months
diff --git a/plugins/statistics/statisticsdialog.cpp b/plugins/statistics/statisticsdialog.cpp
--- a/plugins/statistics/statisticsdialog.cpp
+++ b/plugins/statistics/statisticsdialog.cpp
@@ -56,8 +56,7 @@
     KHBox *generalHBox = new KHBox(this);
 
     generalHTMLPart = new KHTMLPart(generalHBox);
-    connect(generalHTMLPart->browserExtension(), SIGNAL(openUrlRequestDelayed(KUrl,KParts::OpenUrlArguments,KParts::BrowserArguments)),
-            this, SLOT(slotOpenURLRequest(KUrl,KParts::OpenUrlArguments,KParts::BrowserArguments)));
+    connect(generalHTMLPart->browserExtension(), &KParts::BrowserExtension::openUrlRequestDelayed, this, &StatisticsDialog::slotOpenURLRequest);
     generalHTMLPart->setJScriptEnabled(false);
     generalHTMLPart->setJavaEnabled(false);
     generalHTMLPart->setMetaRefreshEnabled(false);
@@ -91,8 +90,8 @@
                                         m_offlineColor.name()));
 
     dialogUi->datePicker->setDate(QDate::currentDate());
-    connect(dialogUi->datePicker, SIGNAL(dateChanged(QDate)), this, SLOT(fillCalendarCells()));
-    connect(dialogUi->datePicker, SIGNAL(dateChanged(QDate)), this, SLOT(generateOneDayStats()));
+    connect(dialogUi->datePicker, &KDatePicker::dateChanged, this, &StatisticsDialog::fillCalendarCells);
+    connect(dialogUi->datePicker, &KDatePicker::dateChanged, this, &StatisticsDialog::generateOneDayStats);
 
     setFocus();
     setEscapeButton(Close);
@@ -108,13 +107,13 @@
 }
 
 // We only generate pages when the user clicks on a link
-void StatisticsDialog::slotOpenURLRequest(const KUrl &url, const KParts::OpenUrlArguments &, const KParts::BrowserArguments &)
+void StatisticsDialog::slotOpenURLRequest(const QUrl &url, const KParts::OpenUrlArguments &, const KParts::BrowserArguments &)
 {
-    if (url.protocol() == QLatin1String("main")) {
+    if (url.scheme() == QLatin1String("main")) {
         generatePageGeneral();
-    } else if (url.protocol() == QLatin1String("dayofweek")) {
+    } else if (url.scheme() == QLatin1String("dayofweek")) {
         generatePageForDay(url.path().toInt());
-    } else if (url.protocol() == QLatin1String("monthofyear")) {
+    } else if (url.scheme() == QLatin1String("monthofyear")) {
         generatePageForMonth(url.path().toInt());
     }
 }
diff --git a/plugins/statistics/statisticsplugin.cpp b/plugins/statistics/statisticsplugin.cpp
--- a/plugins/statistics/statisticsplugin.cpp
+++ b/plugins/statistics/statisticsplugin.cpp
@@ -60,20 +60,15 @@
     QAction *viewMetaContactStatistics = new QAction(QIcon::fromTheme(QStringLiteral("view-statistics")), i18n("View &Statistics"),
                                                      this);
     actionCollection()->addAction(QStringLiteral("viewMetaContactStatistics"), viewMetaContactStatistics);
-    connect(viewMetaContactStatistics, SIGNAL(triggered(bool)), this, SLOT(slotViewStatistics()));
+    connect(viewMetaContactStatistics, &QAction::triggered, this, &StatisticsPlugin::slotViewStatistics);
     viewMetaContactStatistics->setEnabled(Kopete::ContactList::self()->selectedMetaContacts().count() == 1);
 
-    connect(Kopete::ChatSessionManager::self(), SIGNAL(chatSessionCreated(Kopete::ChatSession *)),
-            this, SLOT(slotViewCreated(Kopete::ChatSession *)));
-    connect(Kopete::ChatSessionManager::self(), SIGNAL(aboutToReceive(Kopete::Message&)),
-            this, SLOT(slotAboutToReceive(Kopete::Message&)));
+    connect(Kopete::ChatSessionManager::self(), &Kopete::ChatSessionManager::chatSessionCreated, this, &StatisticsPlugin::slotViewCreated);
+    connect(Kopete::ChatSessionManager::self(), &Kopete::ChatSessionManager::aboutToReceive, this, &StatisticsPlugin::slotAboutToReceive);
 
-    connect(Kopete::ContactList::self(), SIGNAL(metaContactSelected(bool)),
-            viewMetaContactStatistics, SLOT(setEnabled(bool)));
-    connect(Kopete::ContactList::self(), SIGNAL(metaContactAdded(Kopete::MetaContact *)),
-            this, SLOT(slotMetaContactAdded(Kopete::MetaContact *)));
-    connect(Kopete::ContactList::self(), SIGNAL(metaContactRemoved(Kopete::MetaContact *)),
-            this, SLOT(slotMetaContactRemoved(Kopete::MetaContact *)));
+    connect(Kopete::ContactList::self(), &Kopete::ContactList::metaContactSelected, viewMetaContactStatistics, &QAction::setEnabled);
+    connect(Kopete::ContactList::self(), &Kopete::ContactList::metaContactAdded, this, &StatisticsPlugin::slotMetaContactAdded);
+    connect(Kopete::ContactList::self(), &Kopete::ContactList::metaContactRemoved, this, &StatisticsPlugin::slotMetaContactRemoved);
 
     setComponentName(QStringLiteral("kopete_statistics"), i18n("Kopete"));
     setXMLFile(QStringLiteral("statisticsui.rc"));
@@ -99,8 +94,7 @@
             slotMetaContactAdded(metaContact);
             slotOnlineStatusChanged(metaContact, metaContact->status());
         } else {
-            connect(metaContact, SIGNAL(onlineStatusChanged(Kopete::MetaContact *,Kopete::OnlineStatus::StatusType)), this,
-                    SLOT(slotDelayedMetaContactAdded(Kopete::MetaContact *,Kopete::OnlineStatus::StatusType)));
+            connect(metaContact, SIGNAL(onlineStatusChanged(Kopete::MetaContact *,Kopete::OnlineStatus::StatusType)), this, SLOT(slotDelayedMetaContactAdded(Kopete::MetaContact *,Kopete::OnlineStatus::StatusType)));
         }
     }
 }
@@ -183,8 +177,7 @@
 
 void StatisticsPlugin::slotMetaContactAdded(Kopete::MetaContact *mc)
 {
-    connect(mc, SIGNAL(onlineStatusChanged(Kopete::MetaContact *,Kopete::OnlineStatus::StatusType)), this,
-            SLOT(slotOnlineStatusChanged(Kopete::MetaContact *,Kopete::OnlineStatus::StatusType)));
+    connect(mc, &Kopete::MetaContact::onlineStatusChanged, this, &StatisticsPlugin::slotOnlineStatusChanged);
 
     if (!statisticsContactMap.contains(mc)) {
         statisticsContactMap[mc] = new StatisticsContact(mc, db());
@@ -194,8 +187,7 @@
 void StatisticsPlugin::slotDelayedMetaContactAdded(Kopete::MetaContact *mc, Kopete::OnlineStatus::StatusType status)
 {
     if (status != Kopete::OnlineStatus::Unknown) {
-        disconnect(mc, SIGNAL(onlineStatusChanged(Kopete::MetaContact *,Kopete::OnlineStatus::StatusType)), this,
-                   SLOT(slotDelayedMetaContactAdded(Kopete::MetaContact *,Kopete::OnlineStatus::StatusType)));
+        disconnect(mc, &Kopete::MetaContact::onlineStatusChanged, this, &StatisticsPlugin::slotDelayedMetaContactAdded);
 
         slotMetaContactAdded(mc);
         slotOnlineStatusChanged(mc, status);