Warn on specific sites is a free Chrome add-on developed by uetake. Designed to enhance web security, this add-on allows users to display a dialogue when visiting a website that matches the specified criteria.

The main purpose of this add-on is to prevent operational errors and failures by displaying a warning when accessing sites that are not normally visited, such as commercial or staging environments. By registering these specific sites, users can be alerted and reminded to exercise caution before proceeding.

With Warn on specific sites, users can customize the information they want to set for each website and define the criteria that trigger the warning dialogue. This provides an added layer of security and helps users avoid potential risks while browsing the web.

Overall, Warn on specific sites is a valuable Chrome add-on for those who prioritize web security and want to proactively protect themselves from potential threats. Its user-friendly interface and customizable settings make it easy to use and adapt to individual needs.