diff --git a/extensions/typeaheadfind/src/nsTypeAheadFind.cpp b/extensions/typeaheadfind/src/nsTypeAheadFind.cpp
index b941532d2e0..c64e33e64dc 100644
--- a/extensions/typeaheadfind/src/nsTypeAheadFind.cpp
+++ b/extensions/typeaheadfind/src/nsTypeAheadFind.cpp
@@ -1649,7 +1649,7 @@ nsTypeAheadFind::RangeStartsInsideLink(nsIDOMRange *aRange,
     if (parent) {
       nsIContent *parentsFirstChild = parent->GetChildAt(0);
       // We don't want to look at a whitespace-only first child
-      if (parentsFirstChild->TextIsOnlyWhitespace())
+      if (parentsFirstChild && parentsFirstChild->TextIsOnlyWhitespace())
         parentsFirstChild = parent->GetChildAt(1);
 
       if (parentsFirstChild != startContent) {
diff --git a/toolkit/components/typeaheadfind/src/nsTypeAheadFind.cpp b/toolkit/components/typeaheadfind/src/nsTypeAheadFind.cpp
index 72088e385b4..6d0b9d038ee 100755
--- a/toolkit/components/typeaheadfind/src/nsTypeAheadFind.cpp
+++ b/toolkit/components/typeaheadfind/src/nsTypeAheadFind.cpp
@@ -852,7 +852,7 @@ nsTypeAheadFind::RangeStartsInsideLink(nsIDOMRange *aRange,
     nsIContent *parentsFirstChild = parent->GetChildAt(0);
 
     // We don't want to look at a whitespace-only first child
-    if (parentsFirstChild->TextIsOnlyWhitespace()) {
+    if (parentsFirstChild && parentsFirstChild->TextIsOnlyWhitespace()) {
       parentsFirstChild = parent->GetChildAt(1);
     }