Index: firefox-60.9.0/js/src/tests/jstests.list
===================================================================
--- firefox-60.9.0.orig/js/src/tests/jstests.list	2019-12-10 11:03:40.064246162 +0100
+++ firefox-60.9.0/js/src/tests/jstests.list	2019-12-10 11:04:22.464247245 +0100
@@ -447,6 +447,10 @@
 # https://bugzilla.mozilla.org/show_bug.cgi?id=1321616
 skip script test262/annexB/built-ins/Function/createdynfn-html-close-comment-params.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 #