diff --git a/testing/marionette/client/marionette/tests/unit/unit-tests.ini b/testing/marionette/client/marionette/tests/unit/unit-tests.ini
index cb505c29890..2de950da670 100644
--- a/testing/marionette/client/marionette/tests/unit/unit-tests.ini
+++ b/testing/marionette/client/marionette/tests/unit/unit-tests.ini
@@ -96,6 +96,7 @@ browser = false
 [test_simpletest_timeout.js]
 [test_specialpowers.py]
 [test_anonymous_content.py]
+b2g = false
 [test_switch_frame.py]
 b2g = false
 skip-if = os == "win" # Bug 1078237