Modify HTTP Headers
Modify HTTP Headers is a Firefox browser extension that applies declarative rules to add, change, or remove request and response headers for matching URL patterns. It supports rule ordering, wildcard matching, browser sync, and JSON backup and restore for web developers and privacy-focused users.
Overview
8 featuresModify HTTP Headers sits in PulseGate's Browser DevTools & extensions category. It focuses on manipulating HTTP request and response headers for selected websites without manually editing browser traffic. Modify HTTP Headers is a consumer product aimed at firefox users and web developers. It is available for free. Modify HTTP Headers is available on the web and embeddable surfaces.
CirnoT builds and maintains Modify HTTP Headers, and it first shipped in 2025. Key capabilities include request headers, response headers, and header removal. The interface is available in 32 languages, including Czech, German, and Greek.
Summary written by a language model from the project’s public pages.
- Request headers
- Response headers
- Header removal
- Wildcard matching
- Rule ordering
- JSON backup
- JSON restore
- Browser sync
Built with & integrations
Trust & compliance
Indexing history
1What PulseGate has recorded for this listing
- Indexed13 Sep · 11:59 UTCModify HTTP Headers verified via Firefox Add-onsSource: Firefox Add-ons · Open
Frequently asked questions about Modify HTTP Headers
- What does Modify HTTP Headers do?
- Modify HTTP Headers focuses on manipulating HTTP request and response headers for selected websites without manually editing browser traffic. It is catalogued under Browser DevTools & extensions on PulseGate.
- Who is Modify HTTP Headers for?
- Modify HTTP Headers is a consumer product built for firefox users and web developers.
- Does Modify HTTP Headers have a free plan?
- Yes — Modify HTTP Headers is free to use.
- What platforms does Modify HTTP Headers run on?
- Modify HTTP Headers runs on the web and embeddable surfaces.
- Is Modify HTTP Headers still active?
- Unverified. Modify HTTP Headers has not been re-checked since it entered the index, so there is no finding either way — and only a positive finding would say otherwise.
- What projects are similar to Modify HTTP Headers?
- Similar projects tracked by PulseGate include Request Header Modifier, SimpleModifyHeaders, and AddHeader.Request Header ModifierSimpleModifyHeadersAddHeader
- Who makes Modify HTTP Headers?
- Modify HTTP Headers is developed by CirnoT.
- When did Modify HTTP Headers launch?
- Modify HTTP Headers first shipped in 2025.
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