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Header Override: Modify HTTP Headers and Cookies
Developer Tools
Overview
Header Override is a free, open-source browser extension that lets developers modify HTTP request and response headers and override cookies using URL-scoped rules, with local profiles to switch between configurations, available for Chrome, Firefox and Edge.
Key Features
- Modify HTTP request and response headers with URL-scoped rules
- Override and inject cookies
- Local, switchable configuration profiles
- Available for Chrome, Firefox and Edge
Best For
Developers who need to test or debug applications by modifying HTTP headers and cookies in the browser.
Pros & Cons
Cons
- Rules are stored locally per browser; no cloud sync across devices mentioned.
- Not independently security-audited by SEODataPulse.
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Pulse Verdict
Editorial review by SEODataPulse · Editorial rating: 4/5 · Updated
This is an editorial assessment, not an average of customer ratings.
“A free, open-source browser extension for modifying HTTP headers and cookies with local, switchable profiles, aimed at developers who need control over browser traffic.”
Pricing
Free and open-source.
Pricing changes often — confirm current plans on the official site.