This is right but there is something more. If the first entry of the menu has a submenu (like with firefox "view menu"<"toolbar"), you can't navigate with the right arrow through the menus but only with the left one first before going to the right.
This is right but there is something more.
If the first entry of the menu has a submenu (like with firefox "view menu"<"toolbar"), you can't navigate with the right arrow through the menus but only with the left one first before going to the right.