Which Add-on Security Tool you use with Avast Free antivirus?

[system]

I want my PC to be Super Secure

[pondus.mailbox]

Malwarebytes PRO + MCShield

[secondmineboy]

I am using Malwarebytes PRO, Secunia PSI to hold the programms up-to-date, Avast Browser Pugin and Adblock Plus.

You could also use Comodo Firewall+Avast