diff --git a/mozilla/layout/html/tests/block/bugs/37083-1.html b/mozilla/layout/html/tests/block/bugs/37083-1.html
new file mode 100644
index 00000000000..77dffb8c045
--- /dev/null
+++ b/mozilla/layout/html/tests/block/bugs/37083-1.html
@@ -0,0 +1,16 @@
+
Bug 37083
+
+
+
+
+
diff --git a/mozilla/layout/html/tests/block/bugs/37083-2.html b/mozilla/layout/html/tests/block/bugs/37083-2.html
new file mode 100644
index 00000000000..064a02192f9
--- /dev/null
+++ b/mozilla/layout/html/tests/block/bugs/37083-2.html
@@ -0,0 +1,2 @@
+Center
+Center
diff --git a/mozilla/layout/html/tests/block/bugs/37083-3.html b/mozilla/layout/html/tests/block/bugs/37083-3.html
new file mode 100644
index 00000000000..df573230cd2
--- /dev/null
+++ b/mozilla/layout/html/tests/block/bugs/37083-3.html
@@ -0,0 +1,4 @@
+
+text
diff --git a/mozilla/layout/html/tests/block/bugs/40038-1.xml b/mozilla/layout/html/tests/block/bugs/40038-1.xml
new file mode 100644
index 00000000000..322bd1adbb8
--- /dev/null
+++ b/mozilla/layout/html/tests/block/bugs/40038-1.xml
@@ -0,0 +1,30 @@
+
+
+
+
+ Bug 40038
+
+
+
+
+
+
+ |
+ Table centered, left justified
+ |
+
+
+
+
+
+
+
+ |
+ Table at right, left justified
+ |
+
+
+
+
+
+
diff --git a/mozilla/layout/html/tests/block/bugs/40038-2.html b/mozilla/layout/html/tests/block/bugs/40038-2.html
new file mode 100644
index 00000000000..322bd1adbb8
--- /dev/null
+++ b/mozilla/layout/html/tests/block/bugs/40038-2.html
@@ -0,0 +1,30 @@
+
+
+
+
+ Bug 40038
+
+
+
+
+
+
+ |
+ Table centered, left justified
+ |
+
+
+
+
+
+
+
+ |
+ Table at right, left justified
+ |
+
+
+
+
+
+
diff --git a/mozilla/layout/html/tests/block/bugs/file_list.txt b/mozilla/layout/html/tests/block/bugs/file_list.txt
index 115db5dc69d..e55017b6c77 100644
--- a/mozilla/layout/html/tests/block/bugs/file_list.txt
+++ b/mozilla/layout/html/tests/block/bugs/file_list.txt
@@ -91,10 +91,15 @@ file:///s:/mozilla/layout/html/tests/block/bugs/36401-a.html
file:///s:/mozilla/layout/html/tests/block/bugs/36401-b.html
file:///s:/mozilla/layout/html/tests/block/bugs/36401-c.html
file:///s:/mozilla/layout/html/tests/block/bugs/36401.html
+file:///s:/mozilla/layout/html/tests/block/bugs/37083-1.html
+file:///s:/mozilla/layout/html/tests/block/bugs/37083-2.html
+file:///s:/mozilla/layout/html/tests/block/bugs/37083-3.html
file:///s:/mozilla/layout/html/tests/block/bugs/39211.html
file:///s:/mozilla/layout/html/tests/block/bugs/39211-a.html
file:///s:/mozilla/layout/html/tests/block/bugs/39211-b.html
file:///s:/mozilla/layout/html/tests/block/bugs/39211-c.html
+file:///s:/mozilla/layout/html/tests/block/bugs/40038-1.xml
+file:///s:/mozilla/layout/html/tests/block/bugs/40038-2.html
file:///s:/mozilla/layout/html/tests/block/bugs/41521.html
file:///s:/mozilla/layout/html/tests/block/bugs/43882-1.html
file:///s:/mozilla/layout/html/tests/block/bugs/43882-2.html