diff --git a/chrome/autohide_bookmarks_and_main_toolbars.css b/chrome/autohide_bookmarks_and_main_toolbars.css
index 7ef93ef..429636c 100644
--- a/chrome/autohide_bookmarks_and_main_toolbars.css
+++ b/chrome/autohide_bookmarks_and_main_toolbars.css
@@ -65,6 +65,8 @@ See the above repository for updates as well as full license text. */
   visibility: hidden !important
 }
 
+:root[sizemode="fullscreen"] #PersonalToolbar .bookmark-item{ visibility: hidden !important; }
+
 /* The invisible toolbox will overlap sidebar so we'll work around that here */
 #navigator-toolbox{ pointer-events: none; border-bottom: none !important; }
 #PersonalToolbar{ border-bottom: 1px solid var(--chrome-content-separator-color) }