diff --git a/layout/reftests/bugs/405577-1-ref.html b/layout/reftests/bugs/405577-1-ref.html
index a6046053601d..ba5eb585e5cc 100644
--- a/layout/reftests/bugs/405577-1-ref.html
+++ b/layout/reftests/bugs/405577-1-ref.html
@@ -5,24 +5,28 @@ b { white-space:nowrap; }
div { border:1px solid black; }
-
+
+
-
This is text
-
This is text
-
This is text
-
This is text
+
T
+
T
+
T
+
T
+
-
This is text
-
This is text
-
This is text
-
This is text
+
T
+
T
+
T
+
T
-
-
This is text
-
This is text
-
This is text
-
This is text
+
+
+
diff --git a/layout/reftests/bugs/405577-1.html b/layout/reftests/bugs/405577-1.html
index 937eed442940..c35de348ef9d 100644
--- a/layout/reftests/bugs/405577-1.html
+++ b/layout/reftests/bugs/405577-1.html
@@ -5,24 +5,28 @@ b { white-space:nowrap; }
div { border:1px solid black; }
-
+
+
+
-
-
This is text
-This is text
-This is text
-This is text
+
+
+
diff --git a/layout/reftests/bugs/reftest.list b/layout/reftests/bugs/reftest.list
index 9a940c5a1bad..459a5db4d6b4 100644
--- a/layout/reftests/bugs/reftest.list
+++ b/layout/reftests/bugs/reftest.list
@@ -505,7 +505,7 @@ random == 403134-1.html 403134-1-ref.html # bug 405377
== 404666-2.html 404666-2-ref.html
== 405186-1.xhtml about:blank
== 405305-1.html 405305-1-ref.html
-#== 405577-1.html 405577-1-ref.html # disabled because of failure: bug 405577
+== 405577-1.html 405577-1-ref.html
== 405584-1.html 405584-1-ref.html
== 406484-1.html 406484-1-ref.html
== 406568-1.html 406568-1-ref.html