simple-modify-headers

Simple Modify headers

Simple Modify Headers is a powerful Chrome extension that enables users to add, modify, or delete HTTP(S) request and response headers with ease based on customizable rules.

Features include the ability to export and import configuration files in JSON format, targeting specific URLs for header modifications, and straightforward management right within the browser tab. The extension requires permissions like storage, activeTab, tabs, and webRequest to function optimally.

Open-source under the Mozilla Public License 2.0, the extension provides transparency and community-driven improvements. For more information, visit the official GitHub repository at https://github.com/didierfred/SimpleModifyHeaders.

Users:
20,000+
Rating:
4.50
(20)
Version:
1.9.0 (Last updated: 2024-06-10)
Creation date:
2019-09-17
Permissions:
  • activeTab
  • tabs
  • storage
  • declarativeNetRequest
  • declarativeNetRequestWithHostAccess
Host permissions:
  • *://*/*
Size:
147.46K
Full description:
See detailed description
Updated:
a day ago

Other platforms

simple-modify-headers (v1.9.0)
4,571+ 4.71 (31)
simple-modify-headers (v1.8.1)
1,690+ 0.00 (0)

User reviews

Users find 'simple-modify-headers' to be a straightforward, free, and open source tool that effectively modifies request headers, aiding in testing and resolving certain web app issues. It is favored over other header modification tools for its simplicity and functionality. However, users note limitations including inability to add headers during redirects, lack of support for multiple profiles, occasional breaking of YouTube, and the absence of more advanced customization features.
Pros
  • Simple and easy to use
  • Free and open source
  • Effectively modifies request headers as intended
  • Useful for testing and solving specific web app issues
  • Preferred alternative to other header modification extensions
Cons
  • Does not add headers on redirect requests
  • Lacks advanced features like multiple profiles and more functional popup
  • Reported to break YouTube functionality
  • Needs enhancements such as regex or JavaScript-based value modifications
Recent reviews
April 2025: doesn't seem to work anymore... I can't get any Header to be added or modified. Too bad

Set it up and forget about it. No ads!
by Harry King, 2025-02-25

add resource type feature also
by Pilot Man, 2024-10-29
View all user reviews

Extension safety

Risk impact
High risk impact

simple-modify-headers 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 ****** ****** ** *** ********* ****** * *********** ******** **** ** ** *** ******* *** ****** **** **** *** ******* *****
Risk likelihood
Very low risk likelihood

simple-modify-headers has earned a good reputation and can be trusted.

Risk likelihood analysis details
  • High This extension has low user count. Unpopular extensions may not be stable or safe.
  • Low **** ********* *** ******* **** **** * ****** **** ***** ******** *** **** ****** ** ** ****** *** *****
  • Low **** ********* *** ***** **** **** * ****** **** ***** ********** *** **** ****** ** ** ****** *** *****
  • Good **** ********* ** * ******** ********* ** ****** *** *****
  • Good **** ********* *** **** **** *******
Upgrade to see full risk analysis details

Compare extensions

Similar extensions

Here are some Chrome extensions that are similar to simple-modify-headers: