Furui is a free Chrome add-on developed by eiurur that aims to notify users when they are viewing outdated technical articles. This add-on is designed to help users easily identify articles that may contain outdated information, allowing them to make informed decisions about whether to trust the content or seek more up-to-date resources.

One of the main features of Furui is its ability to display a notification through a background color change when the user is viewing a technology article that is considered old. This visual cue serves as a helpful reminder for users to exercise caution and verify the accuracy of the information presented.

Furui is compatible with several popular websites, including DevelopersIO, Qiita, StackOverflow, Server Fault, and Zenn. By supporting these platforms, Furui aims to assist users across a wide range of technical domains.

Overall, Furui is a useful tool for Chrome users who frequently browse technical articles. It provides a simple and effective way to identify outdated content, promoting the use of up-to-date and reliable resources for knowledge acquisition.