Well, I use Privoxy built-in my KM Pro assembly.
It uses own set of blocking rules as well as adblock-based filters (converted from ABP subscriptions).
Other option is AdFender - OS-level app, implementing block by Adblock rules.
Starting from 75.1 you can use
inbuilt adblock KM-plugin. JamesD have written a simple management
macroGUI for it.