Blacklist certain urls and domains

It would be intresting to be able to blacklist certain urls and domains, so they would not get opened. There are already extensions that are able to do so, such as “https://chrome.google.com/webstore/detail/tab-close-gold/blhbohajaekmpblcffpkpogkhkmmbbhf/related” but it would be much faster if you could do it in-app

By ad-blocker you mean extension?