FMBlocker is a Chrome extension developed by Jake Lee that allows users to filter and block galleries and sub-galleries on FMKorea.com. When accessing fmkorea.com, a button is added next to each gallery, allowing users to blind or hide the gallery or sub-gallery.

With FMBlocker, users can easily filter and block specific galleries on the Poten board. By pressing the button provided by the extension, filtered galleries can be excluded from the filtering process, ensuring that they are no longer hidden.

This extension provides a convenient way for users to customize their browsing experience on FMKorea.com by giving them control over which galleries and sub-galleries they want to see or hide.