diff --git a/toolkit/components/antitracking/test/browser/browser.ini b/toolkit/components/antitracking/test/browser/browser.ini
index b25735289626..d43ef05ab98a 100644
--- a/toolkit/components/antitracking/test/browser/browser.ini
+++ b/toolkit/components/antitracking/test/browser/browser.ini
@@ -45,6 +45,7 @@ skip-if = serviceworker_e10s
 [browser_permissionInPrivateWindows.js]
 skip-if = serviceworker_e10s
 [browser_subResources.js]
+skip-if = serviceworker_e10s
 support-files = subResources.sjs
 [browser_script.js]
 support-files = tracker.js