Header Editor

By: 泷涯

Manage browser's requests, include modify the request headers and response headers, redirect requests, cancel requests

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Features & Capabilities

Header Editor is a powerful Chrome extension for inspecting and modifying network traffic. Modify request headers, response headers, and response bodies; redirect requests; or cancel them entirely. It's ideal for web developers, QA engineers, and privacy-conscious users who need fine-grained control over HTTP(S) interactions.

The extension is fully free with no ads and no data collection. A Lite version, source code, self-distribution builds, translation support, and help/feedback channels are available for users who want the latest updates or to contribute. Perfect for debugging, testing, privacy tweaks, and advanced request routing.

User Growth & Download Statistics

Add-on Developer Tools Privacy & Security Programming

By:

泷涯

Daily users:

10,707 48

Rating:

4.71

(183)

Version:

5.2.12 Last updated: 2026-05-26

Version code:

6278077

Creation date:

2017-08-15

Risk:

Permissions:

Size:

762.46KB

URLs:

Website

Full description:

Source:

Firefox Add-ons Store

Data ingested on:

2026-06-15

Compare stats and ranking:

Ranking

# 745 ▲ 4

Other rankings

#66 in Web Development

#3 in css editor keyword 28

#3 in editor keyword 23

#4 in text editor keyword 18

#6 in header keyword 27

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Other platforms

Header Editor Lite (v5.2.12)

200,000 4.36

(77)

For Developers

Monetize with App Pass Boost with Extension Booster

Contact the developer

Chrome-Stats does not own this Firefox add-on. Please use these information below to contact the Firefox add-on developer.

Developed by:

泷涯

Firefox Add-ons Store

https://addons.mozilla.org/firefox/addon/header-editor/

Website:

https://he.firefoxcn.net/

Permission Change History

2025-09-02: Version 4.1.1 → 5.2.3

Add Permissions: declarativeNetRequest

Remove Permissions: contextMenus downloads

User Reviews

Users broadly praise Header Editor for reliable operation and usefulness, with several reviews noting it as a powerful and straightforward tool. The positive sentiment spans ease of use and practicality. A common request is for compatibility updates to support newer Firefox versions and Android. Some reviewers mention performance-conscious design decisions, but overall feedback is favorable and indicates the extension is valuable for header editing, despite a need for ongoing compatibility improvements.

Pros

It works reliably and as expected.
It is a very useful tool with positive reception from users.
The UI is user-friendly and the experience feels straightforward (no-nonsense).

Cons

Needs updates to support newer Firefox versions and Android.

Recent reviews

It just works. They even took performance into account and disabled the "Modify response body" feature by default, although they made it easy to enable. The UI is user-friendly and pleasant. No nonsense. Absolutely love it. Give it a star on GitHub!

by Ro*****, 2026-03-19

非IT，不知道怎么用，但用别人社区分享的规则挺不错。所以我想如果出个规则分享功能就完美了！

by *****, 2026-01-21

very powerful tool

by Ng*****, 2025-11-22

View all user reviews ›

Is Header Editor Safe?

Risk impact

Risk impact measures the level of extra permissions an extension has access to. A low risk impact extension cannot do much harms, whereas a high risk impact extension can do a lot of damage like stealing your password, bypassing your security settings, and accessing your personal data. High risk impact extensions are not necessarily malicious. However, if they do turn malicious, they can be very harmful.

Header Editor requires some sensitive permissions that could impact your browser and data security. Exercise caution before installing.

Risk impact analysis details

Critical Grants access to browser tabs, which can be used to track user browsing habits and history, presenting a privacy concern.
Critical ****** ****** ** *** ********* ****** * *********** ******** **** ** ** *** ******* *** ****** **** **** *** ******* *****
High ****** *** ********* ** ******* *** ******* ******* ** ****** *** *** ******** ******

Risk likelihood

Risk likelihood measures the probability that a Firefox add-on may turn malicious. This is determined by the publisher and the Firefox add-on reputation on Firefox Add-ons Store, the amount of time the Firefox add-on has been around, and other signals about the Firefox add-on. Our algorithms are not perfect, and are subject to change as we discover new ways to detect malicious extensions. We recommend that you always exercise caution when installing a Firefox add-on.

Header Editor is probably trust-worthy. Prefer other publishers if available. Exercise caution when installing this add-on.

Risk likelihood analysis details

High This extension was recently updated in the past month. New updates may not be stable or safe.
Medium **** ********* *** ****** **** ****** ********* ********** *** *** ** ****** ** *****
Low **** ********* *** ***** **** **** * ****** **** ***** ********** *** **** ****** ** ** ****** *** *****
Good **** ********* *** **** **** *******