diff --git a/netwerk/test/mochitests/mochitest.ini b/netwerk/test/mochitests/mochitest.ini
index ade78caea7ab..3a2010369bf2 100644
--- a/netwerk/test/mochitests/mochitest.ini
+++ b/netwerk/test/mochitests/mochitest.ini
@@ -8,3 +8,4 @@ support-files =
 [test_user_agent_overrides.html]
 skip-if = true # bug 942470, intermittently fails to unset overrides
 [test_user_agent_updates.html]
+skip-if = true # bug 942470, intermittently fails to unset overrides