diff --git a/resources/text/CHANGELOG b/resources/text/CHANGELOG
index 12e95862a..86539bc2b 100644
--- a/resources/text/CHANGELOG
+++ b/resources/text/CHANGELOG
@@ -23,6 +23,7 @@
   
   Fixed:
   <ul>
+    <li>Fixed crash when adding Adblock subscription.</li>
     <li>Custom external web browser now correctly opens URLs on some operating systems. This seemed to primarily affect Linux distributions. (bug #123)</li>
     <li>Categories are now not expanded when selected using "Go to next/previous item" in feeds list. (bug #122)</li>
     <li>Added action to expand/collapse currently selected item in feeds list. (enhancement #121)</li>
diff --git a/src/network-web/adblock/adblockdialog.cpp b/src/network-web/adblock/adblockdialog.cpp
index 6a99c3586..1d527c14e 100755
--- a/src/network-web/adblock/adblockdialog.cpp
+++ b/src/network-web/adblock/adblockdialog.cpp
@@ -120,7 +120,10 @@ void AdBlockDialog::addSubscription() {
     QString url = dialog.data()->url();
 
     if (AdBlockSubscription *subscription = m_manager->addSubscription(title, url)) {
-      AdBlockTreeWidget *tree = new AdBlockTreeWidget(subscription, m_ui->m_tabs);
+      AdBlockTreeWidget *tree = new AdBlockTreeWidget(subscription, this);
+
+      connect(tree, SIGNAL(refreshStatusChanged(bool)), this, SLOT(setDisabled(bool)));
+
       int index = m_ui->m_tabs->insertTab(m_ui->m_tabs->count() - 1, tree, subscription->title());
 
       m_ui->m_tabs->setCurrentIndex(index);
@@ -180,17 +183,9 @@ void AdBlockDialog::learnAboutRules() {
 }
 
 void AdBlockDialog::loadSubscriptions() {
-  setEnabled(false);
-
   for (int i = 0; i < m_ui->m_tabs->count(); ++i) {
-    AdBlockTreeWidget *tree = qobject_cast<AdBlockTreeWidget*>(m_ui->m_tabs->widget(i));
-
-    tree->setUpdatesEnabled(false);
-    tree->refresh();
-    tree->setUpdatesEnabled(true);
+    qobject_cast<AdBlockTreeWidget*>(m_ui->m_tabs->widget(i))->refresh();
   }
-
-  setEnabled(true);
 }
 
 void AdBlockDialog::load() {
@@ -199,7 +194,10 @@ void AdBlockDialog::load() {
   }
 
   foreach (AdBlockSubscription *subscription, m_manager->subscriptions()) {
-    AdBlockTreeWidget *tree = new AdBlockTreeWidget(subscription, m_ui->m_tabs);
+    AdBlockTreeWidget *tree = new AdBlockTreeWidget(subscription, this);
+
+    connect(tree, SIGNAL(refreshStatusChanged(bool)), this, SLOT(setDisabled(bool)));
+
     m_ui->m_tabs->addTab(tree, subscription->title());
   }
 
diff --git a/src/network-web/adblock/adblockicon.cpp b/src/network-web/adblock/adblockicon.cpp
index 8185b3ae4..cb43bd47a 100755
--- a/src/network-web/adblock/adblockicon.cpp
+++ b/src/network-web/adblock/adblockicon.cpp
@@ -30,48 +30,15 @@
 
 #include <QMenu>
 #include <QMouseEvent>
-#include <QTimer>
 #include <QWebFrame>
 
 
 AdBlockIcon::AdBlockIcon(QWidget *window, QWidget *parent)
-  : PlainToolButton(parent), m_window(window), m_menuAction(NULL), m_flashTimer(NULL), m_timerTicks(0), m_enabled(false) {
+  : PlainToolButton(parent), m_window(window), m_menuAction(NULL), m_enabled(false) {
   connect(this, SIGNAL(clicked(QPoint)), this, SLOT(showMenu(QPoint)));
   connect(AdBlockManager::instance(), SIGNAL(enabledChanged(bool)), this, SLOT(setEnabled(bool)));
 }
 
-void AdBlockIcon::popupBlocked(const QString &rule_string, const QUrl &url) {
-  int index = rule_string.lastIndexOf(QLatin1String(" ("));
-  const QString subscription_ame = rule_string.left(index);
-  const QString filter = rule_string.mid(index + 2, rule_string.size() - index - 3);
-  AdBlockSubscription* subscription = AdBlockManager::instance()->subscriptionByName(subscription_ame);
-
-  if (filter.isEmpty() || !subscription) {
-    return;
-  }
-
-  QPair<AdBlockRule*,QUrl> pair;
-  pair.first = new AdBlockRule(filter, subscription);
-  pair.second = url;
-  m_blockedPopups.append(pair);
-
-  //!** FIXME
-  //    mApp->desktopNotifications()->showNotification(QPixmap(":images/images/adblock_big.png"), tr("Blocked popup window"), tr("AdBlock blocked unwanted popup window."));
-
-  if (m_flashTimer == NULL) {
-    m_flashTimer = new QTimer(this);
-  }
-
-  if (m_flashTimer->isActive()) {
-    stopAnimation();
-  }
-
-  m_flashTimer->setInterval(500);
-  m_flashTimer->start();
-
-  connect(m_flashTimer, SIGNAL(timeout()), this, SLOT(animateIcon()));
-}
-
 QAction *AdBlockIcon::menuAction() {
   if (m_menuAction == NULL) {
     m_menuAction = new QAction(tr("Adblock"), this);
@@ -193,30 +160,6 @@ void AdBlockIcon::toggleCustomFilter() {
   }
 }
 
-void AdBlockIcon::animateIcon() {
-  m_timerTicks++;
-
-  if (m_timerTicks > 10) {
-    stopAnimation();
-    return;
-  }
-
-  if (icon().isNull()) {
-    setIcon(qApp->icons()->fromTheme("web-adblock"));
-  }
-  else {
-    setIcon(QIcon());
-  }
-}
-
-void AdBlockIcon::stopAnimation() {
-  m_timerTicks = 0;
-  m_flashTimer->stop();
-
-  disconnect(m_flashTimer, SIGNAL(timeout()), this, SLOT(animateIcon()));
-  setEnabled(m_enabled);
-}
-
 void AdBlockIcon::setEnabled(bool enabled) {
   if (enabled) {
     setToolTip(tr("Adblock - up and running"));
@@ -232,7 +175,7 @@ void AdBlockIcon::setEnabled(bool enabled) {
 
 void AdBlockIcon::mouseReleaseEvent(QMouseEvent *event) {
   if (event->button() == Qt::LeftButton) {
-      emit clicked(event->globalPos());
+    emit clicked(event->globalPos());
   }
   else {
     QToolButton::mouseReleaseEvent(event);
diff --git a/src/network-web/adblock/adblockicon.h b/src/network-web/adblock/adblockicon.h
index 6927e2d56..5622cec48 100755
--- a/src/network-web/adblock/adblockicon.h
+++ b/src/network-web/adblock/adblockicon.h
@@ -34,7 +34,6 @@ class AdBlockIcon : public PlainToolButton {
     explicit AdBlockIcon(QWidget *window, QWidget *parent = 0);
     virtual ~AdBlockIcon();
 
-    void popupBlocked(const QString &rule_string, const QUrl &url);
     QAction *menuAction();
 
   public slots:
@@ -45,8 +44,6 @@ class AdBlockIcon : public PlainToolButton {
   private slots:
     void showMenu(const QPoint &pos);
     void toggleCustomFilter();
-    void animateIcon();
-    void stopAnimation();
 
   protected:
     void mouseReleaseEvent(QMouseEvent *event);
@@ -57,11 +54,7 @@ class AdBlockIcon : public PlainToolButton {
   private:
     QWidget *m_window;
     QAction *m_menuAction;
-
     QVector<QPair<AdBlockRule*,QUrl> > m_blockedPopups;
-    QTimer *m_flashTimer;
-
-    int m_timerTicks;
     bool m_enabled;
 };
 
diff --git a/src/network-web/adblock/adblocktreewidget.cpp b/src/network-web/adblock/adblocktreewidget.cpp
index e2ca57f5e..89981c8a1 100755
--- a/src/network-web/adblock/adblocktreewidget.cpp
+++ b/src/network-web/adblock/adblocktreewidget.cpp
@@ -226,6 +226,10 @@ void AdBlockTreeWidget::keyPressEvent(QKeyEvent* event) {
 }
 
 void AdBlockTreeWidget::refresh() {
+  // Disable GUI editing for parent.
+  emit refreshStatusChanged(true);
+  setUpdatesEnabled(false);
+
   m_itemChangingBlock = true;
   clear();
 
@@ -260,6 +264,8 @@ void AdBlockTreeWidget::refresh() {
 
   showRule(0);
   m_itemChangingBlock = false;
+  setUpdatesEnabled(true);
+  emit refreshStatusChanged(false);
 }
 
 void AdBlockTreeWidget::clear() {
diff --git a/src/network-web/adblock/adblocktreewidget.h b/src/network-web/adblock/adblocktreewidget.h
index 3c927287b..0e9ff6a33 100755
--- a/src/network-web/adblock/adblocktreewidget.h
+++ b/src/network-web/adblock/adblocktreewidget.h
@@ -53,6 +53,9 @@ class AdBlockTreeWidget : public QTreeWidget {
   protected:
     void keyPressEvent(QKeyEvent *event);
 
+  signals:
+    void refreshStatusChanged(bool started);
+
   private:
     void adjustItemFeatures(QTreeWidgetItem *item, const AdBlockRule *rule);
     void addTopLevelItem(QTreeWidgetItem *item);