--- a/layout/style/test/mochitest.ini
+++ b/layout/style/test/mochitest.ini
@@ -306,16 +306,17 @@ skip-if = toolkit == 'android' # bug 775
 [test_value_computation.html]
 skip-if = toolkit == 'android'
 [test_value_storage.html]
 [test_variable_serialization_computed.html]
 [test_variable_serialization_specified.html]
 [test_variables.html]
 support-files = support/external-variable-url.css
 [test_vendor_prefix_keyframes.html]
+skip-if = stylo # bug 1356779
 [test_video_object_fit.html]
 [test_viewport_units.html]
 [test_visited_image_loading.html]
 skip-if = (toolkit == 'android' || stylo) # TIMED_OUT for android, timeout bug 1328511 for stylo
 [test_visited_image_loading_empty.html]
 skip-if = (toolkit == 'android' || stylo) # TIMED_OUT for android, timeout bug 1328511 for stylo
 [test_visited_lying.html]
 skip-if = (toolkit == 'android' || stylo) # TIMED_OUT for android, timeout bug 1328511 for stylo