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Modify HTTP request headers, response headers, and redirect URLs

Pricing: Free
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What is ModHeader?

ModHeader is the most popular Chrome extension to modify headers. It is fast, efficient, and light-weight. You can quickly enable/disable header modification with just 1-2 clicks.

ModHeader is free to use, with a paid option to unlock even more features and it works on Chrome, Firefox, Edge, and Opera.

What can ModHeader do?

  • Add, modify, and remove request and response headers
  • Use ModHeader to set X-Forwarded-For, Authorization, Access-Control-Allow-Origin, Content-Security-Policy, and your custom headers!
  • Modify cookies in request / response header
  • Advanced Content-Security-Policy editor
  • Redirect URL to another
  • Enable header modification by URLs
  • Advanced filtering by tab, tab group, or window.

Key Features:

  • Add comments to header
  • One-click 'undo' if you made a mistake
  • Support having multiple profiles with quick switching between profiles
  • Export and import profile
  • Easily share your profiles with others
  • Customize autocomplete names and values
  • Support for dynamic variables
  • Sorting headers and name, value, or comments
  • Append value to existing request or response header
  • Dark mode support and more...

Website: Browser Extensions: Edge Browser Extension , Firefox Browser Extension

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