diff --git a/toolkit/components/typeaheadfind/src/nsTypeAheadFind.cpp b/toolkit/components/typeaheadfind/src/nsTypeAheadFind.cpp
index f0c7f47d8f08..4788655ee43a 100755
--- a/toolkit/components/typeaheadfind/src/nsTypeAheadFind.cpp
+++ b/toolkit/components/typeaheadfind/src/nsTypeAheadFind.cpp
@@ -215,6 +215,10 @@ nsTypeAheadFind::SetDocShell(nsIDocShell* aDocShell)
   mStartFindRange = nsnull;
   mStartPointRange = do_CreateInstance(kRangeCID);
   mSearchRange = do_CreateInstance(kRangeCID);
+
+  mFoundLink = nsnull;
+  mCurrentWindow = nsnull;
+
   return NS_OK;
 }