Extensions don't have an authority to enforce itself on users systems.
Use system/browser-wide DNS like 1.1.1.3 (ask google / chatgpt) in combination with the extension to get the best experience possible. Not deleting the extension per impulse might also be considered as a part of discipline.

Hello!

Due to browser technology limitations, we can only maintain a finite number of blocked websites. Therefore, we prioritize blocking the most frequently visited sites rather than targeting all potentially inappropriate content. While our default blocklist covers many popular sites, you can also add up to 100 custom website blocks of your choice.

For comprehensive adult content filtering, we recommend using family-filter DNS solutions, like Cloudflare's 1.1.1.1 for Families. These provide more thorough protection than any browser extension can offer, as they filter content at the network level rather than just within your browser.