--- a/layout/style/res/html.css
+++ b/layout/style/res/html.css
@@ -572,20 +572,16 @@ abbr[title], acronym[title] {
 ul, menu, dir {
   display: block;
   list-style-type: disc;
   margin-block-start: 1em;
   margin-block-end: 1em;
   padding-inline-start: 40px;
 }
 
-menu[type="context"] {
-  display: none !important;
-}
-
 ol {
   display: block;
   list-style-type: decimal;
   margin-block-start: 1em;
   margin-block-end: 1em;
   padding-inline-start: 40px;
 }
 

--- a/testing/web-platform/meta/html/semantics/interactive-elements/contextmenu-historical.html.ini
+++ b/testing/web-platform/meta/html/semantics/interactive-elements/contextmenu-historical.html.ini
@@ -11,10 +11,10 @@
 
   [menu.type must not exist or reflect the content attribute]
     expected: FAIL
 
   [menu.label must not exist or reflect the content attribute]
     expected: FAIL
 
   [The user-agent stylesheet must leave type="context" menus as block display like other menus]
-    expected: FAIL
+    expected: PASS