ModHeader - Modify HTTP headers

Name: ModHeader - Modify HTTP headers
Rating: 3.2 (141 reviews)
Author: ModHeader

Modify HTTP request headers, response headers, and redirect URLs

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ModHeader is a popular and lightweight Chrome extension designed to modify HTTP request and response headers effortlessly. It supports adding, deleting, or altering headers such as Authorization or Access-Control-Allow-Origin, and allows cookie modifications and URL redirects. With conditional enabling based on URL, resource type, tab, or window, it offers advanced filtering to boost your development workflow.

Key features include multiple profiles with quick switching, profile import/export and sharing, autocomplete customization, dark mode, undo actions, and cloud backup. ModHeader version 4.0.0 introduces enhanced cookie support, tab and window filters, keyboard shortcuts, and improved profile controls. It's free to use with optional paid features. Permissions include webRequest and storage for header modifications and settings. Learn more and automate with Selenium via the official documentation and website.

Add-on Developer Tools Productivity Programming

By:

Users:

Rating:

Version:

7.0.8 Last updated: 2025-04-28

Creation date:

2021-11-09

Risk:

Permissions:

alarms
contextMenus
storage
webRequest
declarativeNetRequest
scripting

Host permissions:

<all_urls>

Size:

679.56KB

URLs:

Website ,Privacy policy

Full description:

Source:

Edge Add-on Store

Data ingested on:

2025-07-14

Ranking

# 122

Other rankings

#1 in modheader keyword 30

#3 in modify keyword 40

#7 in response keyword 13

#11 in header keyword 44 ▲ 1

#12 in request keyword 21

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Other platforms

ModHeader - Modify HTTP headers (v7.0.9)

800,000 3.16

(1,068)

ModHeader (v4.4.1)

19,864 3.37

(67)

User reviews

ModHeader was highly regarded as a developer essential tool for modifying HTTP headers and was popular on Chrome and Edge. However, many users reported that it recently stopped working on Edge, showing white or blank screens. Additionally, users expressed concerns about aggressive advertising, ad injections, and issues affecting VPN functionality. These problems have led to distrust and users seeking alternative extensions. Despite these issues, some users appreciated its original usefulness for accessing geo-restricted sites.

Pros

Useful for modifying HTTP headers, a must-have for developers.
Previously reliable and popular among Chrome users, now available for Edge.
Helps access geo-restricted content like Google, YouTube, and stores (mentioned in Chinese reviews).

Cons

Recently stopped working on Edge, showing blank or white screens on interface.
Injected ads and aggressive advertising for AI-related plugins, causing distrust.
Causes VPN functionality issues and potential browser blocking due to dynamic JavaScript injection.
Users complained about the extension becoming unusable after recent updates.

Recent reviews

ModHeader went off the rails after partnering with MaxAI was even injecting ads into pages at one point. I don’t trust it anymore. Trying out Requestly instead, its open source, has free header modifications and seems much more reliable so far.

by Ja*****, 2025-06-13

Been a top pick on Chrome for an age. So glad to find this now on Edge. It's a developer MUST HAVE. Greak work.

by An*****, 2024-11-20

挂了，用不了了！可惜了，还挺好用的有没有同类型的插件可以推荐？

by *****, 2024-11-04

View all user reviews ›

Extension safety

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.

ModHeader - Modify HTTP headers requires some sensitive permissions that could impact your browser and data security. 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.
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Risk likelihood

Risk likelihood measures the probability that an Edge add-on may turn malicious. This is determined by the publisher and the Edge add-on reputation on Edge Add-on Store, the amount of time the Edge add-on has been around, and other signals about the Edge 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 an Edge add-on.

ModHeader - Modify HTTP headers has earned a good reputation and can be trusted.

Risk likelihood analysis details

Medium This extension was updated in the past 3 months. New updates may not be stable or safe.
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