Anti ad blocker add-on for VAST

[Richard Smith]

Custom filters enhance and override filter lists

Filter lists block the vast majority of ads on web pages. What they can't block they can usually hide, with some exceptions. But particularly stubborn kinds of ads require more aggressive targeting. In some cases, the filters needed to block them break some functionality on that site, and could even break completely unrelated vast ads.

The list authors are understandably reluctant to include such filters in their lists. Instead, they offer them as "custom" filters―filters you can use to enhance or override the filter lists, customizing your ad blocker for specific websites.