diff -r e1c5065a014f -r a4709640638e mozilla-bmo1554971.patch
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mozilla-bmo1554971.patch	Thu Sep 05 08:03:30 2019 +0200
@@ -0,0 +1,22 @@
+# HG changeset patch
+# Parent  a25cebecb02d5460b8ad757fe9cb4a9c8d1d7658
+Eliminate startup error message:
+JavaScript error: , line 0: Error: Type error for platformInfo value (Error processing arch: Invalid enumeration value "s390x") for runtime.getPlatformInfo.
+
+Reported here: https://bugzilla.mozilla.org/show_bug.cgi?id=1554971
+
+Uncertain if this is causing real problems or not. Also uncertain if the fix actually fixes anything.
+No response from upstream yet.
+
+diff -r a25cebecb02d -r 378b81b00e73 toolkit/components/extensions/schemas/runtime.json
+--- a/toolkit/components/extensions/schemas/runtime.json	Fri Jul 05 12:42:44 2019 +0200
++++ b/toolkit/components/extensions/schemas/runtime.json	Fri Jul 19 13:19:30 2019 +0200
+@@ -64,7 +64,7 @@
+       {
+         "id": "PlatformArch",
+         "type": "string",
+-        "enum": ["arm", "x86-32", "x86-64"],
++        "enum": ["arm", "x86-32", "x86-64", "s390x", "aarch64", "ppc64le"],
+         "allowedContexts": ["content", "devtools"],
+         "description": "The machine's processor architecture."
+       },