diff --git a/locales/cy/browser/browser/zen-vertical-tabs.ftl b/locales/cy/browser/browser/zen-vertical-tabs.ftl
index 2415de92a..88627bf4b 100644
--- a/locales/cy/browser/browser/zen-vertical-tabs.ftl
+++ b/locales/cy/browser/browser/zen-vertical-tabs.ftl
@@ -4,6 +4,13 @@ zen-toolbar-context-tabs-right =
 zen-toolbar-context-compact-mode-enable = 
     .label = Enable compact mode
     .accesskey = D
+zen-toolbar-context-compact-mode-just-tabs = 
+    .label = Hide sidebar
+zen-toolbar-context-compact-mode-just-toolbar = 
+    .label = Hide toolbar
+zen-toolbar-context-compact-mode-hide-both = 
+    .label = Hide both
+    .accesskey = H
 zen-toolbar-context-new-folder = 
     .label = New Folder
     .accesskey = N