Filterbook is a free Chrome extension developed by Kira. It falls under the category of Browsers and is classified as an Add-ons & Tools subcategory.

Filterbook provides users with the ability to filter the posts on their Facebook news feed. With this extension, users can hide the left and right columns of the news feed, as well as hide unwanted posts such as "Sponsored" posts, "Videos You May Like," or posts like "X and Y are now friends." Additionally, users can create their own groups of pages and users, and choose to always show posts from them or never show posts from them.

Please note that as Filterbook is still in its first version, it may have some bugs. However, if you're interested, you can give it a try. To enable, disable, or uninstall the extension, simply enter "chrome://extensions" in your browser.

Versionof Filterbook offers better saving of user preferences and ensures that sidebars no longer disappear. The extension can now be found in the left menu.