What functions do Kaspersky Protection addons perform if used with devices running Security Cloud Free? I run Windows 10, principally use Firefox browser and occassionally the new Edge. URL advisor seems to work with Google and Bing regardless of whether the add on is disabled or even installed. And I have occassionally seen Dangerous Content also blocked by Kaspersky without the addon. The On Screen Keyboard works well but the other listed functions I see require a paid subscription. Are there any benefits except for the On-screen keyboard for running the addon with Security Cloud Free?