ModHeader - Modify HTTP headers

ModHeader - Modify HTTP headers

Modify HTTP request headers, response headers, and redirect URLs

ModHeader - Modify HTTP headers promo image
What is ModHeader - Modify HTTP headers?

ModHeader - Modify HTTP headers is a popular Chrome extension by This extension has 677,767 weekly active users, a good user rating of 4.06, and is most similar to Modify Header Value (HTTP Headers) and Postman Interceptor. The latest version, 4.1.5, was updated 2 months ago.

Stats date:
Install link: Chrome Web Store
Version: 4.1.5 (Last updated: 2022-11-17)
Creation date: 2020-06-13
Manifest version: 2
  • alarms
  • contextMenus
  • webRequest
  • storage
  • webRequestBlocking
  • <all_urls>
Featured: Yes
Size: 356.35K
Email: Click to see
Risk impact: High risk impact
Risk likelihood: Very low risk likelihood
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Other platforms

ModHeader (v4.2.0)
58 14,394
The most popular Chrome extension to modify headers

** What can ModHeader do?**
- Add, modify, and remove request and response headers
- Use ModHeader to set X-Forwarded-For, Authorization, Access-Control-Allow-Origin, Content-Security-Policy, and your custom headers!
- Modify cookies in request / response header
- Advanced Content-Security-Policy editor
- Redirect URL to another
- Enable header modification by URLs
- Advanced filtering by tab, tab group, or window

** Where is tab lock **
- Tab lock has been redesigned as Tab Filter and can be found in the + button. It is still available for free users.

** Why ModHeader **
See more
Risk impact

ModHeader - Modify HTTP headers requires a number of risky permissions that can potentially harm your browser and steal your data. Exercise caution when installing this extension. Review carefully before installing. We recommend that you only install ModHeader - Modify HTTP headers if you trust the publisher.

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, bypass your security settings, and access your personal data. High risk impact extensions are not necessarily malicious. However, if they do turn malicious, they can be very harmful.

Risk likelihood

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

Risk likelihood measures the probability that a Chrome extension may turn malicious. This is determined by the publisher and the Chrome extension reputation on Chrome Web Store, the amount of time the Chrome extension has been around, and other signals about the Chrome extension. 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 Chrome extension, especially ones with higher risk impact and/or higher risk likelihood.

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User reviews
Really easy to use
by Chishamiso Chivhenge Chishamiso Chivhenge, 2023-01-30

it's ok.
by Ali Elahi Ali Elahi, 2023-01-28

by Shinning Store Shinning Store, 2023-01-25
View all user reviews
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Similar extensions

Here are some Chrome extensions that are similar to ModHeader - Modify HTTP headers:

Modify Header Value (HTTP Headers) Modify Header Value (HTTP Headers)
Publisher: Grephy
User count: 43,162
Rating: 37
Add, modify or remove a header for any request on desired domains.
Postman Interceptor Postman Interceptor
User count: 714,311
Rating: 931
Sends requests fired through the Postman chrome app.
Redirect URL, Modify Headers & Mock APIs Redirect URL, Modify Headers & Mock APIs
User count: 168,431
Rating: 1,014
Web Debugging Proxy to Intercept & Modify HTTPs Requests - Redirect URL, Modify Headers, Mock APIs, Modify Response, Insert Scripts

The manifest file declares the requirements and permissions that a Chrome extension will have access to. By reviewing the manifest, you may be able to determine if a Chrome extension is over-reaching (for example, if an extension is overriding your new tab page, or search provider, or requesting access to your web activities without any good reason).

  "update_url": "",
  "manifest_version": 2,
  "name": "ModHeader - Modify HTTP headers",
  "version": "4.1.5",
  "description": "Modify HTTP request headers, response headers, and redirect URLs",
  "short_name": "ModHeader",
  "homepage_url": "",
  "background": {
    "scripts": [
  "browser_action": {
    "default_icon": "images/icon.png",