diff --git a/Src/xWorks/XhtmlDocView.cs b/Src/xWorks/XhtmlDocView.cs
index 849e62d2d8..ce2e94dc02 100644
--- a/Src/xWorks/XhtmlDocView.cs
+++ b/Src/xWorks/XhtmlDocView.cs
@@ -1308,7 +1308,7 @@ private void ScrollAndHighlightResult(GeckoWebBrowser geckoBrowser, IBasicFindVi
 
 			private void ClearCurrentFindResult(GeckoWebBrowser geckoBrowser, string lastId)
 			{
-				var currentElement = geckoBrowser.Document.GetHtmlElementById(lastId);
+				var currentElement = geckoBrowser.Document?.GetHtmlElementById(lastId);
 				if (currentElement != null)
 					docView.RemoveClassFromHtmlElement(currentElement, CurrentSelectedEntryClass);
 			}
@@ -1321,6 +1321,12 @@ private bool InitResults(string searchText)
 				if (results == null || results.Length == 0)
 				{
 					string newResults = string.Empty;
+					if (geckoBrowser.Document == null)
+					{
+						results = null;
+						resultIndex = 0;
+						return true;
+					}
 					geckoBrowser.RemoveMessageEventListener("find");
 					geckoBrowser.AddMessageEventListener("find", r => newResults = r);
 					using(var executor = new AutoJSContext(geckoBrowser.Window))