Extension Auditor
Sign Up
Chrome Web Store
2Versions
0Code reviewed

Not reviewed

No code review on record

We have not reviewed this extension’s code, so we cannot vouch for it either way. Check the permissions below to decide whether it asks for more than it needs.

Want us to read this extension's code? Ask for a review and we'll queue it.

10 indicators in this extension

10 indicators
0 versions analysed

Every finding is verified by a security analyst. Unlock the code evidence, indicators and version history.

Unlock this report — $4.99Start 7-day trial — all reports
One-time payment · Secure checkout by Stripe

What our analysis found

CatBlock Ad Blocker is not yet reviewed by Extension Auditor. Its permissions mean it can read and change data on all websites and can inject scripts into pages. It comes from a publisher with 2 extensions and was last updated in July 2026.

CatBlock Ad Blocker

CatBlock Ad Blocker Chrome extension security report

ID: inidiimhhobdobacmmpnljkoagfhdeog

Supported Languages

🇺🇸US English

Extension Info & Metadata

Status
Active
Version
0.4.3
Size
1.41 MB
Rating
0.0/5
Reviews
0
Users
9
Type
Extension
Updated
Jul 24, 2026
Category
Privacy & security
Price
Paid
Featured
No
Visibility
Listed
Mature
No
By Google
No
Trusted
No
Download CRX
Chrome Web Store
Report Issue
This publisherTrack record
2extensions
All still listed

Publisher Contextual Analysis

Author
LeetCraft
Privacy
Privacy Policy
Help
Help Center
MX records exist
Yes
Domain exists
Yes
Is disposable
No
Is role-based
No
Mailbox exists
Yes
Website
Visit
Extensions
2
Active
2
Obsolete
0
Listed
2
Unlisted
0
Users
105

Screenshots & videos

Screenshot 1
Screenshot 2
Screenshot 3
Screenshot 4
Screenshot 5

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.
<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.
Broad Content Script Access
Risk Factor
High
This extension can inject scripts into any website.
declarativeNetRequestFeedback
Permission
Medium
This permission provides network request modification logs. Rated Medium because it can monitor network request changes and debug traffic modifications.
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.
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.
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.
alarms
Permission
Low
This permission schedules periodic tasks. Rated Low because it can only trigger events at specified times without access to sensitive data.

10 indicators in this extension

10 indicators
0 versions analysed

Every finding is verified by a security analyst. Unlock the code evidence, indicators and version history.

Unlock this report — $4.99Start 7-day trial — all reports
One-time payment · Secure checkout by Stripe

About this extension

Free web ad blocker. Blocks ads, trackers, pop-ups and cookie banners for a faster, cleaner and more private web.

Read the publisher’s full description

🚫 Block ads on YouTube and everywhere you browse. CatBlock is a fast, honest ad blocker built on Chrome's modern Manifest V3 engine. It starts blocking ads the moment you install it: no account to create, no card required. And unlike other ad blockers, CatBlock has no "acceptable ads" program: no advertiser can ever pay to be allowed through our filters. ⚡ Download CatBlock and enjoy a cleaner web: ▶️ Block YouTube video ads, including pre-roll and mid-roll, and watch your videos without interruptions. ✅ Say goodbye to annoying pop-ups, banners and video ads on the sites you visit every day. 🕵️ Stop third-party trackers and analytics beacons, and keep your browsing behavior away from advertisers. 🛡️ Protect your device from malicious ads, viruses and scams with dedicated malware and badware filter lists. 🎯 Take control with one-click controls: pause blocking on a website or a single page, hide any element on a page with the Block element tool, and restore it any time. Your choices are saved on your device only. 📊 See exactly what CatBlock does for you with blocked counters for the current page and in total. 👑 Premium features included: 🍪 Hide cookie consent banners and pop-ups that clutter websites, and get to your content faster. 🧘 Block more distractions: auto-playing videos, floating video players that follow you as you scroll, newsletter pop-ups and more. 🔒 Your privacy comes first: All blocking happens locally in your browser using declarative rulesets. CatBlock never sees, collects or transmits your browsing history, the pages you visit or the ads that were blocked. Note: when you install CatBlock, Chrome shows a standard warning that the extension can access your data on websites. This message appears for every ad blocker; we NEVER collect identifying information about users. 🐾 CatBlock's filter data is built on the rulesets of uBlock Origin Lite (GPLv3), including uBlock filters, EasyList, EasyPrivacy, Peter Lowe's list and URLhaus. Attribution is included in the package. ✨ CatBlock includes a 7-day free trial of all features. 📜 By installing this extension you agree to our terms of use https://catblockplus.com/terms and our privacy policy https://catblockplus.com/privacy. 💬 Questions? Visit our help center https://catblockplus.com/help or contact us at https://catblockplus.com/contact.

User reviews

Extension files

Browse and explore files within this extension package

Gain full insight into all external connections.

Upgrade for full visibility.

Sign In
URLs
10

URLs

View the external URLs this extension communicates with to understand its network activity and data interactions.

No URLs found
No IP addresses found

10 indicators in this extension

10 indicators
0 versions analysed

Every finding is verified by a security analyst. Unlock the code evidence, indicators and version history.

Unlock this report — $4.99Start 7-day trial — all reports
One-time payment · Secure checkout by Stripe
Version
Size
Verdict
Findings
Permhash
0.4.3
Latest
1.41 MBNot scanned—
f331a319dd7f82a641c8ac64d7fcc2a0c79417f8ae33451f70fed744e1f50f2b
0.4.2
1.41 MBNot scanned—
f331a319dd7f82a641c8ac64d7fcc2a0c79417f8ae33451f70fed744e1f50f2b
Showing 1 to 2 of 10 rows
Rows per page:

Code Diff

Compare extension code between any two versions.

0 changed files detected

No comparable text files found between these versions.

Gain full insight into all external connections.

Upgrade for full visibility.

Sign In