diff --git a/testing/web-platform/tests/lint.whitelist b/testing/web-platform/tests/lint.whitelist
index be52aa67c00b..9966d7c307b5 100644
--- a/testing/web-platform/tests/lint.whitelist
+++ b/testing/web-platform/tests/lint.whitelist
@@ -813,10 +813,6 @@ LAYOUTTESTS APIS: permissions/test-background-fetch-permission.html
 LAYOUTTESTS APIS: resources/chromium/generic_sensor_mocks.js
 LAYOUTTESTS APIS: resources/chromium/webxr-test.js
 
-# Gecko additons to remove
-CSS-COLLIDING-REF-NAME: css/css-contain/reference/contain-size-fieldset-001-ref.html
-CSS-COLLIDING-REF-NAME: css/vendor-imports/mozilla/mozilla-central-reftests/contain/contain-size-fieldset-001-ref.html
-
 # Signed Exchange files have hard-coded URLs in the certUrl field
 WEB-PLATFORM.TEST:signed-exchange/resources/*.sxg
 WEB-PLATFORM.TEST:signed-exchange/appcache/resources/*.sxg