If you want to replicate the effect of the "network.proxy.allow_hijacking_localhost" setting in Google Chrome, you can use a tool like Charles Proxy or Fiddler to intercept and redirect traffic for localhost or domains ending in ".local". These tools allow you to specify rules for redirecting traffic based on various criteria, including the hostname, path, and HTTP method.

To use these tools, you will need to install them on your computer and configure them to act as a proxy for your browser traffic. Once the proxy is set up, you can create rules to redirect traffic for specific domains or IP addresses to different locations. For example, you could create a rule to redirect traffic for localhost to a different IP address or domain name.

Keep in mind that these tools are typically used for debugging or testing purposes, and are not intended for general use. You should use caution when redirecting traffic, as it can potentially interfere with the normal functioning of your browser and other applications.