Chrome Web StoreNo malware found
In code review (v1.5.6)
Our reviewer read version 1.5.6 — 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
Free Adblocker for Chrome by Open Adblocker, used by 100,000 people, showed no malicious code in Extension Auditor's review. Its permissions mean it can read and change data on all websites, can inject scripts into pages and can observe network requests. It was last updated in September 2026.
Analyst notes
The extension is an open‑source adblocker. All permissions (scripting, webRequest, cookies, tabs, etc.) are necessary for its declared functionality. Code review shows content scripts that inject ad‑blocking rules, manage cookies, and apply cosmetic filters; all external communication is internal via chrome.runtime.sendMessage. There is no evidence of data exfiltration or malicious behavior. The minor mismatch between the bundled manifest and the CWS‑published permissions (tabs, cookies missing from the listing) is likely an oversight and does not indicate malice.
Free Adblocker for Chrome by Open Adblocker Chrome extension security report
ID: jncabfnemmiofhiimdgelgeobggelpci
Supported Languages
Extension Info & Metadata
Publisher Contextual Analysis
- Author
- openadblockerdeveloper
- Privacy
- Privacy Policy
- MX records exist
- Yes
- Domain exists
- Yes
- Is disposable
- No
- Is role-based
- No
- Mailbox exists
- Yes
- Website
- Visit
You reached today's free scan limit (3/3 unique extensions).
Upgrade for full visibility.
Screenshots & videos
Install growth
About this extension
Get the best open source ad blocker - Block ads in one click
Read the publisher’s full description
Block ads across the web with Open Adblocker, the best free open source adblocker. We keep it simple – block all types of ads on all pages in one click and enjoy an ad-free browsing experience. 🆕 New: Automatically block annoying cookie consent pop-ups across the internet for a smoother browsing experience. We believe in a minimal approach: No clutter, no complex filter list menus. Just an effective ad blocker powered by open source technology. Yes it means that our codebase is open source. Add Open Adblocker to your browser access these features: 🧩 Lightweight, memory efficient adblocker extension for Chrome - Easily block banners, popup, pop under and video ads. 🎥 Block YouTube Ads - Skip distractions and enjoy uninterrupted viewing experience. 🌐 Choose the domains you want to block - Control which sites have ad blocking on or off. 🧱 Block malware and adware - Stop unwanted and misleading content across the web. ⚙️ Transparent and Open Source - Our entire codebase is open source and available on GitHub. New Features 🛡️ WebRTC Leak Protection 🍪 Block Cookie Consent Pop-ups - Automatically remove cookie banners across the internet. Why Open Adblocker? — Lightweight hustle free experience, just one click and you are set. — Built in free cookie consent popup blocker — Optimized memory consumption. — True open source transparency. How to get started? 1. Click “Add to Chrome” and confirm installation. 2. Pin it to your taskbar for quicker access. 3. Open the open adblocker extension and turn Ad blocking on or off. We are Open-source Check out our open source code base on GitHub: https://github.com/developeradblocker/open_adblocker What’s New 🆕 Cookie consent popup blocker (free for all users) 🔧 WebRTC leak protection 🔧 Updated adblocking configuration for improved ad blocking.
User reviews
Extension files
Browse and explore files within this extension package
You reached today's free scan limit (3/3 unique extensions).
Upgrade for full visibility.
No network indicators were extracted from this version.
Code Diff
Compare extension code between any two versions.
0 changed files detected
No comparable text files found between these versions.
You reached today's free scan limit (3/3 unique extensions).
Upgrade for full visibility.
Related extensions
Popular in Workflow & Planning
- Adobe Acrobat: PDF edit, convert, sign tools345,000,000 users
- Application Launcher For Drive (by Google)99,000,000 users
- AdBlock — block ads across the web64,000,000 users
- Chrome Remote Desktop41,000,000 users
- Adblock Plus - free ad blocker40,000,000 users