If you're looking to Download Cookie Beast on your Chromebook laptop Then read the following guideline.

Take back your privacy by controlling which sites are allowed to send cookies. Cookie Beast lets you block sites from sending cookies unless you allow them to. The app works as a Safari Content Blocker so the app never needs to see your browsing or know about your cookies. You can optionally turn on the Safari Extension in order to easily manage your block and allow lists from within Safari without needing to open the app!