diff --git a/.cron.yml b/.cron.yml
index e87f85f784488..b6b93265a415b 100644
--- a/.cron.yml
+++ b/.cron.yml
@@ -241,7 +241,6 @@ jobs:
           - mozilla-central
           - mozilla-beta
           - mozilla-release
-          - mozilla-esr78
           - mozilla-esr91
       when:
           - {weekday: 'Monday', hour: 8, minute: 0}