diff --git a/src/core/engine.cpp b/src/core/engine.cpp
--- a/src/core/engine.cpp
+++ b/src/core/engine.cpp
@@ -36,6 +36,7 @@
 #include <QtCore/QDir>
 #include <QtXml/qdom.h>
 #include <QUrlQuery>
+#include <QThreadStorage>
 
 #if defined(Q_OS_WIN)
 #include <windows.h>
@@ -53,6 +54,9 @@
 
 using namespace KNSCore;
 
+typedef QHash<QString, XmlLoader*> EngineProviderLoaderHash;
+Q_GLOBAL_STATIC(QThreadStorage<EngineProviderLoaderHash>, EngineProviderLoaders)
+
 class EnginePrivate {
 public:
     QList<Provider::CategoryMetadata> categoriesMetadata;
@@ -188,11 +192,17 @@
         qCDebug(KNEWSTUFFCORE) << "loading providers from " << m_providerFileUrl;
         emit signalBusy(i18n("Loading provider information"));
 
-        XmlLoader *loader = new XmlLoader(this);
+        XmlLoader *loader = EngineProviderLoaders()->localData().value(m_providerFileUrl);
+        if (!loader) {
+            qCDebug(KNEWSTUFFCORE) << "No xml loader for this url yet, so create one and temporarily store that" << m_providerFileUrl;
+            loader = new XmlLoader(this);
+            EngineProviderLoaders()->localData().insert(m_providerFileUrl, loader);
+            connect(loader, &XmlLoader::signalLoaded, this, [this](){ EngineProviderLoaders()->localData().remove(m_providerFileUrl); });
+            connect(loader, &XmlLoader::signalFailed, this, [this](){ EngineProviderLoaders()->localData().remove(m_providerFileUrl); });
+            loader->load(QUrl(m_providerFileUrl));
+        }
         connect(loader, &XmlLoader::signalLoaded, this, &Engine::slotProviderFileLoaded);
         connect(loader, &XmlLoader::signalFailed, this, &Engine::slotProvidersFailed);
-
-        loader->load(QUrl(m_providerFileUrl));
     }
 }
 
diff --git a/src/core/jobs/httpjob.cpp b/src/core/jobs/httpjob.cpp
--- a/src/core/jobs/httpjob.cpp
+++ b/src/core/jobs/httpjob.cpp
@@ -20,6 +20,8 @@
 #include "knewstuffcore_debug.h"
 #include "httpworker.h"
 
+#include <QTimer>
+
 using namespace KNSCore;
 
 class HTTPJob::Private
@@ -86,6 +88,6 @@
 {
 //     qCDebug(KNEWSTUFFCORE) << Q_FUNC_INFO;
     HTTPJob* job = new HTTPJob(source, loadType, flags, parent);
-    job->start();
+    QTimer::singleShot(0, job, &HTTPJob::start);
     return job;
 }