Tamper Data 11.0.1 Firefox __exclusive__

: By modifying POST parameters after they leave the browser but before they hit the server, users could bypass simple front-end security checks. Web Debugging

Toggle “Start Tamper” mode. Every HTTP/HTTPS request triggers a popup window showing the raw request headers, POST data, and cookies. You can edit any part before clicking “Send.” tamper data 11.0.1 firefox

Would you like a step-by-step tutorial for installing and using Tamper Data 11.0.1 on a legacy system as well? : By modifying POST parameters after they leave