Modify Headers DNR

Name: Modify Headers DNR
Author: Brawl

By: Brawl

Modify request and response headers through the DeclarativeNetRequest API

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Features & Capabilities

Modify Headers DNR is a powerful Chrome extension that enables you to set, append, and remove HTTP headers on both requests and responses. Utilizing the Manifest V3-compatible DeclarativeNetRequest API, this extension offloads the header modification logic directly to the browser, offering efficient and reliable header control.

Unlike typical header modifiers, Modified Headers DNR ensures compliance with Chrome's latest extension standards while seamlessly handling header changes. Note that modified response headers might not appear in the network console, but they remain applied to your web interactions, enhancing your control over HTTP traffic without additional resource use.

User Growth & Download Statistics

Add-on Developer Tools Privacy & Security

By:

Brawl

Daily users:

146 2

Version:

3.1.0 Last updated: 2026-06-10

Version code:

6300533

Creation date:

2024-08-18

Risk:

Permissions:

Host permissions:

<all_urls>

Size:

77.48KB

URLs:

Website

Full description:

Source:

Firefox Add-ons Store

Data ingested on:

2026-06-19

Compare stats and ranking:

Ranking

# 9,395 ▲ 54

Other rankings

#5 in modify keyword 37

#6 in modheader keyword 35

#24 in header keyword 42

#45 in response keyword 16

#135 in request keyword 25 ▼ 1

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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:

Brawl

Firefox Add-ons Store

https://addons.mozilla.org/firefox/addon/modify-headers-dnr/

Website:

https://github.com/Brawl345/modify-headers-dnr

Permission Change History

2026-06-10: Version 2.1.0 → 3.1.0

Remove Permissions: declarativeNetRequestFeedback

Is Modify Headers DNR 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.

Modify Headers DNR requires a few sensitive permissions. Exercise caution before installing.

Risk impact analysis details

Critical Allows access to all websites, posing a significant security risk as it can monitor and modify data from any visited site.

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.

Modify Headers DNR 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.
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