java.util.concurrent.TimeoutException: android.view.ThreadedRenderer.finalize() timed out after 10 seconds

Since KitKat, I have issues with WebViews (freeze, crash)

I have resolved these issues deactivating hardware acceleration for webViews. It could work for you.

if (Build.VERSION.SDK_INT >= 19) // KITKAT
{
    webView.setLayerType(View.LAYER_TYPE_SOFTWARE, null);
}