diff --git a/mozilla/testing/mochitest/tests/browser/Makefile.in b/mozilla/testing/mochitest/tests/browser/Makefile.in
index 1871731be15..6213825eab6 100644
--- a/mozilla/testing/mochitest/tests/browser/Makefile.in
+++ b/mozilla/testing/mochitest/tests/browser/Makefile.in
@@ -47,12 +47,13 @@ include $(topsrcdir)/config/rules.mk
 _BROWSER_TEST_FILES = 	  browser_pass.js \
 	                  browser_async.js \
 	                  browser_scope.js \
-	                  browser_fail.js \
-	                  browser_fail_async_throw.js \
-	                  browser_fail_fp.js \
-	                  browser_fail_pf.js \
-	                  browser_fail_throw.js \
-	                  browser_fail_timeout.js \
+# Disabled, these are only good for testing the harness' failure reporting
+#	                  browser_fail.js \
+#	                  browser_fail_async_throw.js \
+#	                  browser_fail_fp.js \
+#	                  browser_fail_pf.js \
+#	                  browser_fail_throw.js \
+#	                  browser_fail_timeout.js \
 	                  $(NULL)
 
 libs:: $(_BROWSER_TEST_FILES)