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Manage browser's requests, include modify the request headers and response headers, redirect requests, cancel requests
JavaScript Vue CSS Other
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Header Editor

Build Status GitHub release license Gitter

An extension which can modify the request, include request headers, response headers, redirect requests, and cancel requests.

For more documentations, Please visit documentions

Get this extension

Firefox Logo Mozilla Add-on.

Chrome Logo Chrome Web Store.

Firefox Logo Install our self-distributed version.

About Permissions

Header Editor require those permissions:

  • tabs: Open links or switch to a tab

  • webRequest, webRequestBlocking, all_urls: Modify the requests

  • contextMenus: Add anti-hot-link to right-click menu

  • storage, unlimitedStorage: Storage rules and settings

  • downloads: Export rules

  • unsafe-eval: Custom function require it, code at src/options/App.vue#L657 and src/core/rules.js#L23 (The location may change in the future, you can search for the newest location by new Function)


Contribute codes: Submiting a pull request

Thanks to the following personnel for their contribution:


English: Please submit a issue or pull request for file build/locales/original.json

Other: Transifex

The following are language maintainers, Thanks for their contribution. If you have any advice on translations, please contact the maintainer(s) directly.

How to build


  • Install node, npm or yarn. (It is recommended to use yarn, or the build result may be inconsistent with the release version)

  • Clone this project, or download the source code and extract it

  • Run yarn or npm install


  • Run yarn build or npm run build

  • Find build result at /dist


  • Run yarn watch:dev or npm run watch:dev

  • Open browser, load extension from /dist directory or /dist/manifest.json


Copyright © 2017-2019 FirefoxBar Team

Open source licensed under GPLv2.

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