Index: firefox-68.5.0/js/src/tests/jstests.list
===================================================================
--- firefox-68.0/js/src/tests/jstests.list
+++ firefox-68.0/js/src/tests/jstests.list
@@ -493,6 +493,10 @@ skip script test262/language/expressions
 skip script test262/language/statements/class/elements/derived-cls-direct-eval-err-contains-superproperty-1.js
 skip script test262/language/statements/class/elements/derived-cls-direct-eval-err-contains-superproperty-2.js

+# Crashes on s390x and ppc64, avoid it
+#
+skip-if(xulRuntime.XPCOMABI.match(/s390x|ppc64-/)) script non262/extensions/clone-errors.js
+

 ###########################################################
 # Tests disabled due to issues in test262 importer script #