add Norton Internet Security

Hello, I use the browser Comodo Dragon, not so long ago bought an antivirus Norton Internet Security, and discovered that the plug-in (add) Norton Toolbar, Norton Identity Safe, Norton Safe Web … do not work in the browser, but the icon is present, but most do not have toolbar with the functional. The three leading browsers, anti-virus add-in works. Why do developers Comodo Dragon does not make a full opportunity to use third-party add-in, anti-virus solutions? What is the use of the icons of the toolbar when not?