diff --git a/src/qbrowserlib/settings.hxx b/src/qbrowserlib/settings.hxx
index 3be8f4d..c78bfdb 100644
--- a/src/qbrowserlib/settings.hxx
+++ b/src/qbrowserlib/settings.hxx
@@ -62,8 +62,12 @@ namespace qbrowserlib {
           _settingJavascriptCanAccessClipboard;
         _attributes[QWebSettings::DeveloperExtrasEnabled] =
           _settingDeveloperExtrasEnabled;
+#if QT_VERSION >= QT_VERSION_CHECK(4, 7, 0)
         _attributes[QWebSettings::SpatialNavigationEnabled] =
           _settingSpatialNavigationEnabled;
+#else
+        _settingSpatialNavigationEnabled->hide();
+#fi
         _attributes[QWebSettings::LinksIncludedInFocusChain] =
           _settingLinksIncludedInFocusChain;
         _attributes[QWebSettings::ZoomTextOnly] =
@@ -78,20 +82,30 @@ namespace qbrowserlib {
           _settingLocalStorageEnabled;
         _attributes[QWebSettings::LocalContentCanAccessRemoteUrls] =
           _settingLocalContentCanAccessRemoteUrls;
+#if QT_VERSION >= QT_VERSION_CHECK(4, 7, 0)
         _attributes[QWebSettings::LocalContentCanAccessFileUrls] =
           _settingLocalContentCanAccessFileUrls;
-        // not in qt 4.7.0 (mac)
-        // _attributes[QWebSettings::XSSAuditingEnabled] =
-        //   _settingXSSAuditingEnabled;
         _attributes[QWebSettings::AcceleratedCompositingEnabled] =
           _settingAcceleratedCompositingEnabled;
         _attributes[QWebSettings::TiledBackingStoreEnabled] =
           _settingTiledBackingStoreEnabled;
         _attributes[QWebSettings::FrameFlatteningEnabled] =
           _settingFrameFlatteningEnabled;
-        // not in qt 4.7.0 (mac)
-        // _attributes[QWebSettings::SiteSpecificQuirksEnabled] =
-        //   _settingSiteSpecificQuirksEnabled;
+#else
+        _settingLocalContentCanAccessFileUrls->hide();
+        _settingAcceleratedCompositingEnabled->hide();
+        _settingTiledBackingStoreEnabled->hide();
+        _settingFrameFlatteningEnabled->hide();
+#fi
+#if QT_VERSION >= QT_VERSION_CHECK(4, 8, 0)
+        _attributes[QWebSettings::XSSAuditingEnabled] =
+          _settingXSSAuditingEnabled;
+        _attributes[QWebSettings::SiteSpecificQuirksEnabled] =
+          _settingSiteSpecificQuirksEnabled;
+#else
+        _settingXSSAuditingEnabled->hide();
+        _settingSiteSpecificQuirksEnabled->hide();
+#fi
 
         // CheckBoxes
         _checkboxes["SaveWindowState"] =