GOPbook is a Chrome extension developed by Cooklabs. It falls under the category of Browsers and is specifically categorized as an Add-ons & Tools. This free plugin allows users to display their support for the Republican party on Facebook.

With GOPbook, users can modify the design and color scheme of their Facebook pages to reflect their political affiliation. This extension can be easily enabled or disabled according to the user's preference. In addition to the design modifications, GOPbook also provides options to add a direct link to GOP.com on Facebook pages and offers a GOP-themed background.

It is important to note that GOPbook is currently in a pre-release version, similar to a beta version. The developers, Cooklabs, have plans to incorporate additional features and bug fixes in the near future. Users can expect regular updates to enhance their GOPbook experience.