Chrome Web Store
152Versions
1Code reviewed

No malware found

In code review (v10.5.45)

Our reviewer read version 10.5.45 — 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

Ghostery AdBlocker for Privacy, used by 2,000,000 people, showed no malicious code in Extension Auditor's review. Its permissions mean it can inject scripts into pages and can observe network requests. It comes from a trusted publisher and was last updated in October 2026.

The extension is a well-known privacy ad blocker by Ghostery with millions of users. The permissions requested (webRequest, declarativeNetRequest, cookies, scripting, etc.) are standard for ad-blocking functionality. The codebase performs typical ad-blocking, tracker detection, and cookie consent management. Data collection (e.g., WhoTracksMe click reporting) is consistent with the extension's purpose and is disclosed in the CWS privacy policy, with data sent to first-party ghostery domains. No evidence of unauthorized data exfiltration, remote code execution, or hidden malicious behavior was found. The high risk engine score is driven solely by permission combinations that are necessary for this category of extension.

Ghostery AdBlocker for Privacy

Ghostery AdBlocker for Privacy Chrome extension security report

ID: mlomiejdfkolichcflejclcbmpeaniij

Supported Languages

🇧🇷Brazilian Portuguese
🇨🇳Chinese (Simplified)
🇹🇼Chinese (Traditional)
🇺🇸English
🇫🇷French
🇩🇪German
🇮🇹Italian
🇯🇵Japanese
🇰🇷Korean
🇵🇱Polish
🇷🇺Russian
🇪🇸Spanish
🇻🇳Vietnamese

Extension Info & Metadata

Status
Active
Version
10.6.6
Size
7.51 MB
Rating
4.0/5
Reviews
19,256
Users
2,000,000
Type
Extension
Updated
Oct 3, 2026
Category
Make_chrome_yours Privacy
Price
Free
Featured
Yes
Visibility
Listed
Mature
No
By Google
No
Trusted
Yes
This publisherTrack record
2extensions
All still listed
Scanned by Extension Auditor — Low RiskDevelopers: embed this badge to link to this report.

Publisher Contextual Analysis

Trusted
Author
https://www.ghostery.com/
Country
DE
MX records exist
Yes
Domain exists
Yes
Is disposable
No
Is role-based
Yes
Mailbox exists
Yes
Address
Arabellastraße 23 München 81925 DE
Website
Visit
Extensions
2
Active
2
Obsolete
0
Listed
1
Unlisted
1
Users
2,000,298

Screenshots & videos

Screenshot 1
Screenshot 2
Screenshot 3
Screenshot 4

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.
scripting
Permission
Critical
This permission allows injection and execution of JavaScript on any webpage. Rated Critical because it can modify page content, steal sensitive data, and inject malicious code into any site the extension has access to.
userScripts
Permission
Critical
This permission allows registration of arbitrary user scripts that run in a page's main world. Rated Critical because the scripts execute with full access to page JavaScript, can be updated at runtime from remote code, and bypass the isolated world that normally contains content scripts.
webRequest
Permission
Critical
This permission enables the extension to monitor and analyze all web requests made by the browser. Rated Critical because it can observe all network traffic including sensitive data, track browsing behavior, and gather authentication tokens.
http://*/*
Host
Critical
Broad host access — the extension can read/modify content on every website.
https://*/*
Host
Critical
Broad host access — the extension can read/modify content on every website.
cookies
Permission
High
This permission provides full access to read and modify browser cookies. Rated High because it can steal session tokens, modify authentication cookies, and compromise accounts across websites.
webNavigation
Permission
High
This permission enables monitoring of all browser navigation events and transitions. Rated High because it can track every page visit, navigation method, and browsing pattern, potentially exposing sensitive browsing behavior and user activities.
offscreen
Permission
High
This permission creates hidden browser documents with full DOM access. Rated High because it can run background operations invisibly, potentially executing malicious code without user awareness.
Dangerous Permission Combination: scripting,cookies,webRequest
Risk Factor
High
Affects data integrity and user control
Contextual Risk Factors
Risk Factor
High
The following context increases the overall risk: • 10% increase: Early script execution enables pre-emptive content manipulation • 10% increase: About:blank access enables potential sandbox escape vectors
declarativeNetRequestFeedback
Permission
Medium
This permission provides network request modification logs. Rated Medium because it can monitor network request changes and debug traffic modifications.
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.
tabs
Permission
Medium
This permission enables tab management and monitoring. Rated Medium because it can track open tabs, access tab metadata, and monitor user browsing patterns.
activeTab
Permission
Medium
This permission grants temporary access to the current tab. Rated Medium because it can access current page content when invoked, though limited to user-initiated actions.
ws://*/*
Host
Medium
Host permission — access limited to this URL pattern.
wss://*/*
Host
Medium
Host permission — access limited to this URL pattern.
Early Content Script Execution
Risk Factor
Medium
This extension runs content scripts at document_start.
About:blank Access
Risk Factor
Medium
This extension can run content scripts in about:blank pages.
alarms
Permission
Low
This permission schedules periodic tasks. Rated Low because it can only trigger events at specified times without access to sensitive data.
contextMenus
Permission
Low
This permission adds items to browser context menus. Rated Medium because it only modifies right-click menus without access to page content.

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About this extension

Fast, private, and ad-free browsing you can trust!

Read the publisher’s full description

Powerful and easy-to-use privacy extension. Block ads, trackers & speed up your web. Ghostery is a powerful Tracker & Adblocker extension for Chrome with over 100 million downloads. Block ads, stop trackers, and speed up websites. Privacy at its best. FEATURES * Block all ads on websites, including YouTube and Facebook, to focus on the information that matters. * Stop trackers from collecting your personal data. * Automatically remove intrusive cookie pop-ups and express dissent to online tracking. * Get detailed tracker information on any website you visit, including the number of trackers, their type, and the company operating them. * Preview tracker information on search engine result pages to make informed choices. * Inspect the largest database of trackers, updated fast and reliably for all users. ABOUT GHOSTERY Ghostery is more than just a Chrome Ad Blocker. It provides comprehensive privacy protection while minimizing the need for customization and maintenance. As an open-source Chrome Ad Blocker supported by thousands of Contributors worldwide, Ghostery is free to use forever. Become a Contributor to Ghostery and help fund the development of the Privacy Suite and WhoTracks.Me, the largest database of trackers in the world. Together, let's fight for privacy as a human right! FAQ *** What is an adblocker? *** An ad blocker is a tool that prevents advertisements from appearing while you browse the internet. It works by detecting and blocking requests from known ad servers, stopping banners, pop-ups, video ads, and other types of online advertising from loading. Ad blockers can also improve page load times and enhance privacy by reducing tracking from ad networks. *** What is a tracker blocker? *** A tracker blocker is a tool that stops websites and third parties from collecting data about your online behavior. It blocks tracking scripts and cookies that monitor what you do across the web - like the pages you visit, what you click on, or what you buy. By blocking trackers, it helps protect your privacy and can even speed up browsing. *** Does Ghostery Tracker & Ad Blocker work on Youtube? *** Yes, Ghostery Tracker & Ad Blocker works on YouTube by blocking ads and trackers that load with videos. While some video ads may still slip through due to platform changes, Ghostery continuously updates its Chrome Ad Blocker technology to improve your experience and protect your privacy, even on sites like YouTube. ***How do I block ads on Chrome?*** You can block ads on Chrome by installing a browser extension like Ghostery, which is a free and easy-to-use ad blocker. Once installed from the Chrome Web Store, Ghostery automatically blocks all types of intrusive ads. With Ghostery, you not only have a solid Chrome ad blocker but also faster browsing, reduced clutter, and improved privacy protection.

User reviews

Extension files

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No network indicators were extracted from this version.

Version
Size
Verdict
Findings
Permhash
10.6.6
Latest
7.51 MBNot scanned—
13cd4ce58734c6c24155a470347a504929f0cf98d80002c965bf8c0897053438
10.6.5
7.50 MBNot scanned—
13cd4ce58734c6c24155a470347a504929f0cf98d80002c965bf8c0897053438
10.6.4
7.53 MBNot scanned—
13cd4ce58734c6c24155a470347a504929f0cf98d80002c965bf8c0897053438
10.6.3
7.51 MBNot scanned—
13cd4ce58734c6c24155a470347a504929f0cf98d80002c965bf8c0897053438
10.6.2
7.50 MBNot scanned—
13cd4ce58734c6c24155a470347a504929f0cf98d80002c965bf8c0897053438
10.6.1
7.48 MBNot scanned—
13cd4ce58734c6c24155a470347a504929f0cf98d80002c965bf8c0897053438
10.6.0
7.47 MBNot scanned—
13cd4ce58734c6c24155a470347a504929f0cf98d80002c965bf8c0897053438
10.5.57
7.08 MBNot scanned—
f7c011dccf15f3122bae8cfd297a21fc132d014e7aee7bfc97c51bbfa29d832a
10.5.58
7.40 MBNot scanned—
13cd4ce58734c6c24155a470347a504929f0cf98d80002c965bf8c0897053438
10.5.29
7.63 MBNot scanned—
f7c011dccf15f3122bae8cfd297a21fc132d014e7aee7bfc97c51bbfa29d832a
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Code Diff

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