Chrome Web Store
6Versions
1Code reviewed

No malware found

In code review (v2.10.4)

Our reviewer read version 2.10.4 — the most recent version we have reviewed — and found no malicious behaviour. The version shown here has not been individually reviewed yet.

What our analysis found

Netmirror Extension, used by 600,000 people, showed no malicious code in Extension Auditor's review. Its permissions mean it can read and change data on all websites. It comes from a trusted publisher and was last updated in September 2026.

Analyst notes

The extension's code is straightforward and transparent. It uses declarativeNetRequest to modify HTTP headers as advertised. No data exfiltration, tracking, or code injection is present. The default Referer rule points to a site mentioned in the extension's description, aligning with user expectations. The pre-computed critical risk is based solely on broad permissions, which are necessary for the header-modifying functionality.

Netmirror Extension

Netmirror Extension Chrome extension security report

ID: imeeoinlogcehkhfjcopabijecfobcod

Supported Languages

🇺🇸US English

Extension Info & Metadata

Status
Active
Version
3.20.7
Size
0.03 MB
Rating
4.4/5
Reviews
73
Users
600,000
Type
Extension
Updated
Sep 25, 2026
Category
Developer tools
Price
Free
Featured
No
Visibility
Listed
Mature
No
By Google
No
Trusted
Yes
This publisherTrack record
1extension
All still listed
Scanned by Extension Auditor — Low RiskDevelopers: embed this badge to link to this report.

Publisher Contextual Analysis

Trusted
Author
https://netmirror.global/
MX records exist
No
Domain exists
Yes
Is disposable
No
Is role-based
Yes
Mailbox exists
No
Website
Visit
Extensions
1
Active
1
Obsolete
0
Listed
1
Unlisted
0
Users
600,000

Email Change History

1 change
Sep 1, 2025
Domain changed

Screenshots & videos

Screenshot 1
Screenshot 2
Screenshot 3

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.
declarativeNetRequestWithHostAccess
Permission
Critical
This permission combines network request modification with host permissions. Rated Critical because it can modify requests for specific domains, potentially targeting sensitive websites with precise attack rules.
<all_urls>
Host
Critical
Broad host access — the extension can read/modify content on every website.
Contextual Risk Factors
Risk Factor
High
The following context increases the overall risk: • 10% increase: Early script execution enables pre-emptive content manipulation
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.
Early Content Script Execution
Risk Factor
Medium
This extension runs content scripts at document_start.

About this extension

Netmirror2.bio Watch Free Online and Download Add, modify or remove a header for any request. Netmirror Mod Header (HTTP Headers)…

Read the publisher’s full description

Netmirror2.bio Watch Free Online and Download Add, modify or remove a header for any request. Netmirror Mod Header (HTTP Headers) is an extension that can add, modify or remove an HTTP-request-header for all requests on a website or URL. This Addon is very useful if you are an App developer, website designer, or if you want to test a particular header for a request on a website.

User reviews

Extension files

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No network indicators were extracted from this version.

Version
Size
Verdict
Findings
Permhash
3.20.7
Latest
0.03 MBNot scanned—
4e52f1175ee4eaeabbf18f6453c772cc988da9bc507216124c32add2030432a9
1.10.2
0.02 MBNot scanned—
4e52f1175ee4eaeabbf18f6453c772cc988da9bc507216124c32add2030432a9
1.10.3
0.02 MBNot scanned—
4e52f1175ee4eaeabbf18f6453c772cc988da9bc507216124c32add2030432a9
2.10.3
0.02 MBNot scanned—
4e52f1175ee4eaeabbf18f6453c772cc988da9bc507216124c32add2030432a9
3.20.5
0.03 MBNot scanned—
4e52f1175ee4eaeabbf18f6453c772cc988da9bc507216124c32add2030432a9
2.10.4
0.01 MBNo malware found0
4e52f1175ee4eaeabbf18f6453c772cc988da9bc507216124c32add2030432a9
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Code Diff

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0 changed files detected

No comparable text files found between these versions.

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