Need help uninstalling Comodo Internet Security

I uninstalled Comodo Internet Security but parts of it are left on my computer. When i use firefox i type something into address bar instead of using google it does comodo search still even though i uninstalled the program.

I even tried reinstalling Comodo Internet Security then using revo uninstaller and removing all left overs.

I also did complete uninstall of firefox and all its parts and left overs.

How do i get rid of the search?!?!

You need to change the DNS servers from the Comodo DNS servers to the DNS servers of your choice.

Follow the procedure and in the last step change the DNS servers: Secure DNS for Windows Vista, DNS Setup Instructions - Comodo .