Item logo image for headerMod — Modify HTTP Headers

headerMod — Modify HTTP Headers

ExtensionDeveloper Tools12 users
Item media 1 (screenshot) for headerMod — Modify HTTP Headers

Overview

Add or modify HTTP request headers for development and testing. Local-only, no tracking.

headerMod is a developer tool that lets you add or modify HTTP request headers. • Turn rules on/off globally or one by one • Optional URL filter per rule • Grant access per website (you stay in control) • Everything is stored locally in your browser headerMod does not collect, upload, or track your data. There is no account and no analytics.

Details

  • Version
    1.0.0
  • Updated
    July 15, 2026
  • Offered by
    mubai19951001
  • Size
    285KiB
  • Languages
    English (United States)
  • Developer
    Email
    13588781920@163.com
  • Non-trader
    This developer has not identified itself as a trader. For consumers in the European Union, please note that consumer rights do not apply to contracts between you and this developer.

Privacy

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The developer has disclosed that it will not collect or use your data. To learn more, see the developer’s privacy policy.

This developer declares that your data is

  • Not being sold to third parties, outside of the approved use cases
  • Not being used or transferred for purposes that are unrelated to the item's core functionality
  • Not being used or transferred to determine creditworthiness or for lending purposes

Support

For help with questions, suggestions, or problems, visit the developer's support site

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