知乎过滤器 is a free Chrome browser add-on that allows users to filter content on the popular Chinese question-and-answer platform, Zhihu. With this add-on, users can easily block anonymous users' answers and comments by simply clicking on the plugin icon in the address bar.

In addition, 知乎过滤器 also allows users to block specific users on Zhihu. By selecting the username of the user they wish to block and right-clicking, they can add them to the block list. Once added, all answers and comments from the blocked user will be invisible on Zhihu.

Furthermore, users can easily remove the block on specific users by clicking on the plugin icon in the address bar and selecting the username from the "Blacklist" section.

With its simple and intuitive interface, 知乎过滤器 provides users with an effective way to filter and manage content on Zhihu, enhancing their browsing experience and allowing them to focus on the content that matters most to them.