Header Setter by Otto Wagner

Header Setter lets you customize HTTP request headers and cookies for individual domains directly from your browser.

Features:
• Set custom HTTP request headers per domain
• Add custom cookies per domain
• Redirect one domain to another while keeping the original host name — requires the free, open-source header-setter-proxy companion tool, since Google retired Manifest V2 and Manifest V3 blocks extensions from manipulating the Host header directly
• Enable or disable individual rules
• Exact domain matching without affecting subdomains
• Local storage only
• No analytics, tracking, remote server, or data collection

Open source:
• https://github.com/otto-wagner/header-setter

Support:
• Support development via GitHub Sponsors: https://github.com/sponsors/otto-wagner
• Or via PayPal: https://paypal.me/ottowagner