Description from extension meta
Curate a list of blocked websites with a custom redirect page.
Image from store
Description from store
The BlockList extension allows you to create a list of domains you want to avoid. Upon encountering a website you wish to avoid in the future, you can quickly block that website through the extension. The list of blocked websites is stored locally through your browser, so your list stays safe and private with you.
BlockList options can be used to set a custom redirect page that the browser will redirect to when you navigate to a blocked site.
This is a simple extension for simple blocking requirements.