Edge Add-ons
4Versions
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What our analysis found

ModHeader V4 — [by modheader.app] is not yet reviewed by Extension Auditor. Its permissions mean it can read and change data on all websites. It comes from a publisher with 10 extensions and was last updated in August 2026.

ModHeader V4 — [by modheader.app]

ModHeader V4 — [by modheader.app] Edge extension security report

ID: nkhgpbbfnkkackebcjacllpajlohmfnd

Supported Languages

🇺🇸US English

Extension Info & Metadata

Status
Active
Version
6.3.16
Size
0.77 MB
Rating
0.0/5
Reviews
0
Users
0
Type
Extension
Updated
Aug 8, 2026
Category
Developer-tools
Price
Paid
Featured
No
Visibility
Listed
Mature
No
By Google
No
Trusted
No
This publisherTrack record
10extensions
All still listed

Publisher Contextual Analysis

Author
ModHeader Inc
Website
Visit
Extensions
10
Active
9
Obsolete
0
Listed
10
Unlisted
0
Users
36

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Screenshots & videos

Screenshot 1
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Screenshot 3
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Screenshot 5
Screenshot 6

Install growth

Item
Type
Severity
Description
declarativeNetRequest
Permission
Critical
This permission allows the extension to define rules to block, redirect, or modify network requests. Rated Critical because it can control all network traffic, potentially blocking security updates or redirecting to malicious sites.
<all_urls>
Host
Critical
Broad host access — the extension can read/modify content on every website.
clipboardRead
Permission
High
This permission allows reading clipboard content. Rated High because it can steal copied passwords, sensitive data, and monitor all content copied to clipboard.
clipboardWrite
Permission
High
This permission allows modification of clipboard content. Rated High because it can inject malicious content into the clipboard, modify copied passwords, and manipulate copied data.
Broad Host Permissions
Risk Factor
High
This extension has broad host permissions allowing it to access many or all websites.
storage
Permission
Medium
This permission allows storing data locally in the browser. Rated Medium because it can persist sensitive user data, track user activities over time, and potentially store malicious payloads.

About this extension

ModHeader V4 — [by modheader.app] Modify change add edit update remove replace override HTTP request and response headers free.

Read the publisher’s full description

ModHeader V5 by modheader.app – The Ultimate Edge Add-on for Modifying HTTP Headers ModHeader V5 by modheader.app is a powerful Edge Add-on for modifying, adding, editing, removing, and overriding HTTP request headers and HTTP response headers. Whether you're a web developer, frontend engineer, backend developer, QA tester, DevOps engineer, security researcher, API developer, or IT professional, ModHeader V5 by modheader.app provides an easy way to inspect and customize network requests directly from your browser. Modify headers without changing your application code. Instantly override User-Agent, Referer, Origin, Cookie, Authorization, Accept, Accept-Language, Cache-Control, Host, X-Forwarded-For, X-Requested-With, Content-Type, Content-Length, Connection, DNT, Sec-Fetch headers, custom headers, and many more. ModHeader V5 by modheader.app is built for modern web development and API testing. Perfect for Developers. Key Features: • Modify HTTP request headers • Modify HTTP response headers • Add new request headers • Add new response headers • Edit existing headers • Remove unwanted headers • Override request headers • Override response headers • Replace header values • Disable headers • Enable headers with one click • Create reusable header profiles • Switch between profiles instantly • Apply rules based on URL patterns • Enable or disable rules per website • Import and export configurations • Backup and restore profiles • Lightweight and fast • Privacy focused • No unnecessary permissions Use ModHeader V5 by modheader.app to: • Test REST APIs • Test GraphQL APIs • Debug HTTP requests • Debug HTTP responses • Simulate different browsers • Change User-Agent strings • Override Referer headers • Modify Origin headers • Edit Authorization tokens • Inject Bearer tokens • Test JWT authentication • Add API keys • Modify cookies • Test CORS behavior • Debug CORS issues • Test CDN configurations • Test reverse proxies • Test load balancers • Test cache behavior • Test localization using Accept-Language • Test mobile websites • Test desktop websites • Test browser compatibility • Simulate different devices • Simulate crawlers and bots • Debug authentication flows • Test staging environments • Test production APIs safely Common Use Cases: • HTTP header editor • Request header modifier • Response header modifier • Header manager • User-Agent switcher • Referer changer • Cookie editor • Origin modifier • Authorization header editor • API testing tool • REST API testing • GraphQL testing • Network debugging • Web development • Frontend development • Backend development • Website debugging • Browser debugging • CORS testing • Security testing • Penetration testing • QA automation • Software testing • Web application testing Supports Common Headers: • User-Agent • Referer • Origin • Cookie • Authorization • Accept • Accept-Encoding • Accept-Language • Cache-Control • Pragma • Connection • Upgrade-Insecure-Requests • DNT • Host • Content-Type • Content-Length • X-Requested-With • X-Forwarded-For • X-Real-IP • X-API-Key • Custom headers • Response headers • Request headers Why Choose ModHeader V5 by modheader.app? • Clean and intuitive interface • Fast rule matching • Easy profile management • Reliable request interception • Powerful header modification engine • Designed for developers • Works with modern websites • Regular updates • High performance • Easy to learn • Advanced features for professionals Whether you're debugging an API, testing authentication, modifying request headers, overriding response headers, changing User-Agent, editing cookies, troubleshooting CORS, or building modern web applications, ModHeader V5 by modheader.app is the Edge Add-on that helps you work faster and more efficiently.

User reviews

Extension files

Browse and explore files within this extension package

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No network indicators were extracted from this version.

Version
Size
Verdict
Findings
Permhash
6.3.16
Latest
0.77 MBNot scanned—
e63ee4caccaa67714658fa3c0366ffb2a367b00e54eb938aecf40f89e449e0fc
2026-08-08 Stable
0.76 MBNot scanned—
e63ee4caccaa67714658fa3c0366ffb2a367b00e54eb938aecf40f89e449e0fc
2026-08-08 Stable ModHeader V4 — [by modheader.app]
0.76 MBNot scanned—
e63ee4caccaa67714658fa3c0366ffb2a367b00e54eb938aecf40f89e449e0fc
2026-08-08 Stable ModHeader V4 � [by modheader.app]
N/ANot scanned—
e63ee4caccaa67714658fa3c0366ffb2a367b00e54eb938aecf40f89e449e0fc
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Code Diff

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