ACs Header Control is a Chrome add-on developed by Ambrose Clarke that allows users to adjust the HTTP Referer Headers for debugging purposes. This free tool is specifically designed to assist developers in troubleshooting and testing their web applications.

With ACs Header Control, users can easily set the HTTP Referer Headers to simulate different scenarios and analyze how their web applications behave under different conditions. This can be extremely useful for identifying and fixing bugs, as well as optimizing performance.

One of the key features of ACs Header Control is its ability to apply filters on a per-site basis. This means that users can define specific rules for different websites, allowing for more targeted debugging. Whether you're working on a single website or multiple projects, ACs Header Control provides the flexibility to customize the HTTP Referer Headers to meet your specific needs.

In summary, ACs Header Control is a valuable tool for developers who need to adjust HTTP Referer Headers for debugging purposes. Its intuitive interface and site-specific filters make it easy to simulate different scenarios and analyze web application behavior. Best of all, it's available for free on the Chrome platform.