FullscreenJC is a Chrome extension that adds a button to expand the player of Faculdade UCA. This extension allows you to watch videos in a larger size within the browser window, instead of taking up the entire screen.

With FullscreenJC, you can easily toggle between the default player size and the expanded view with just a click of a button. This is especially useful for users who prefer to have the video player in a larger size while still being able to navigate and multitask on other tabs or windows.

Although the integration with other platforms like Hotmart and b7web is mentioned, further details are not provided. It is unclear whether this integration is already available or still in development.

Overall, FullscreenJC offers a convenient solution for those who want to have a larger video player on Faculdade UCA without occupying the entire screen. With its simple interface and easy-to-use button, this extension enhances the viewing experience for users.