diff --git a/embedding/test/mochitest.ini b/embedding/test/mochitest.ini
index 5d5fbc8423e..c287a8ed55e 100644
--- a/embedding/test/mochitest.ini
+++ b/embedding/test/mochitest.ini
@@ -4,6 +4,7 @@ support-files =
   bug293834_form.html
 
 [test_bug293834.html]
+skip-if = (toolkit == "cocoa" && e10s) # bug 1252223
 [test_bug499115.html]
 [test_nsFind.html]
 [test_private_window_from_content.html]