diff --git a/effects/blur/blur.cpp b/effects/blur/blur.cpp
index f878f8b915..eef3857d6e 100644
--- a/effects/blur/blur.cpp
+++ b/effects/blur/blur.cpp
@@ -220,7 +220,9 @@ void BlurEffect::drawWindow(EffectWindow *w, int mask, QRegion region, WindowPai
     bool valid = target->valid() && shader->isValid();
 
     QRegion shape;
-    if (!effects->activeFullScreenEffect() && hasAlpha && !w->isDesktop() && !transformed)
+    const QVariant forceBlur = w->data( WindowForceBlurRole );
+    if ((!effects->activeFullScreenEffect() || (forceBlur.isValid() && forceBlur.toBool() ))
+            && hasAlpha && !w->isDesktop() && !transformed)
         shape = blurRegion(w).translated(w->geometry().topLeft()) & screen;
 
     if (valid && !shape.isEmpty() && region.intersects(shape.boundingRect()))
diff --git a/effects/cube/cubeslide.cpp b/effects/cube/cubeslide.cpp
index 5a7181c7cb..44da3759b3 100644
--- a/effects/cube/cubeslide.cpp
+++ b/effects/cube/cubeslide.cpp
@@ -204,15 +204,18 @@ void CubeSlideEffect::prePaintWindow( EffectWindow* w,  WindowPrePaintData& data
         QRect rect = effects->clientArea( FullArea, effects->activeScreen(), painting_desktop );
         if( dontSlidePanels && w->isDock())
             {
+            w->setData( WindowForceBlurRole, QVariant( true ) );
             panels.insert( w );
             }
         if( !w->isManaged() )
             {
+            w->setData( WindowForceBlurRole, QVariant( true ) );
             stickyWindows.insert( w );
             }
         else if( dontSlideStickyWindows && !w->isDock() &&
             !w->isDesktop() && w->isOnAllDesktops())
             {
+            w->setData( WindowForceBlurRole, QVariant( true ) );
             stickyWindows.insert( w );
             }
         if( w->isOnDesktop( painting_desktop ) )
@@ -453,6 +456,12 @@ void CubeSlideEffect::postPaintScreen()
                 timeLine.setCurveShape( TimeLine::LinearCurve );
             if( slideRotations.empty() )
                 {
+                foreach( EffectWindow* w, panels )
+                    w->setData( WindowForceBlurRole, QVariant( false ) );
+                foreach( EffectWindow* w, stickyWindows )
+                    w->setData( WindowForceBlurRole, QVariant( false ) );
+                stickyWindows.clear();
+                panels.clear();
                 effects->setActiveFullScreenEffect( 0 );
                 }
             }
diff --git a/effects/desktopgrid/desktopgrid.cpp b/effects/desktopgrid/desktopgrid.cpp
index 1154530796..9aedf5bef8 100644
--- a/effects/desktopgrid/desktopgrid.cpp
+++ b/effects/desktopgrid/desktopgrid.cpp
@@ -38,6 +38,7 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #include <QtGui/QPainter>
 #include <QtGui/QGraphicsLinearLayout>
 #include <Plasma/PushButton>
+#include <Plasma/WindowEffects>
 
 namespace KWin
 {
@@ -166,12 +167,19 @@ void DesktopGridEffect::paintScreen( int mask, QRegion region, ScreenPaintData&
         it != m_desktopButtonsViews.end(); ++it )
         {
         if( !it.value() )
-            it.value() = effects->findWindow( it.key()->winId() );
+            {
+            EffectWindow *view = effects->findWindow( it.key()->winId() );
+            if( view )
+                {
+                view->setData( WindowForceBlurRole, QVariant( true ) );
+                it.value() = view;
+                }
+            }
         if( it.value() )
             {
             WindowPaintData d( it.value() );
             d.opacity *= timeline.value();
-            effects->drawWindow( it.value(), PAINT_WINDOW_TRANSFORMED | PAINT_WINDOW_TRANSLUCENT,
+            effects->drawWindow( it.value(), PAINT_WINDOW_TRANSLUCENT,
                                  infiniteRegion(), d );
             }
         }
@@ -1544,6 +1552,7 @@ DesktopButtonsView::DesktopButtonsView( QWidget* parent )
     qreal width = form->size().width() + left + right;
     qreal height = form->size().height() + top + bottom;
     m_frame->resizeFrame( QSizeF( width, height ) );
+    Plasma::WindowEffects::enableBlurBehind( winId(), true, m_frame->mask() );
     form->setPos( left, top );
     scene->setSceneRect( QRectF( QPointF( 0, 0 ), QSizeF( width, height ) ) );
     setScene( scene );
diff --git a/lib/kwineffects.h b/lib/kwineffects.h
index 0979294636..2a5ae70f78 100644
--- a/lib/kwineffects.h
+++ b/lib/kwineffects.h
@@ -192,7 +192,8 @@ enum DataRole
     WindowAddedGrabRole = 1,
     WindowClosedGrabRole,
     WindowMinimizedGrabRole,
-    WindowUnminimizedGrabRole
+    WindowUnminimizedGrabRole,
+    WindowForceBlurRole ///< For fullscreen effects to enforce blurring of windows
     };
 
 /**