Filter Bubble is a Chrome extension that allows users to filter out unwanted content on the web. With this tool, users can create a list of topics they wish to hide or remove from specific websites. By setting up rules with CSS selectors targeting HTML elements, users can effectively block out content related to the specified topics on chosen websites.

The extension comes with pre-configured settings for a few websites, but users have the flexibility to customize filters for additional sites by understanding how to use CSS selectors. Filter Bubble provides a straightforward solution for users looking to tailor their online browsing experience by eliminating undesired content.