Chrome Web Store
7Versions
1Code reviewed

No malware found

In code review

Our reviewer read this extension’s code and found no malicious behaviour. Review the permissions below before installing.

JustBlock Security – Ad Blocker, Malware & Phishing Protection

JustBlock Security – Ad Blocker, Malware & Phishing Protection

ID: hiajdlfgbgnnjakkbnpdhmhfhklkbiol

Supported Languages

🇧🇷Brazilian Portuguese
🇬🇧British English
🇫🇷French
🇩🇪German
🇲🇽Latin American Spanish
🇵🇹Portuguese
🇪🇸Spanish
🇺🇸US English

Extension Info & Metadata

Status
Active
Version
3.0.6
Size
2.05 MB
Rating
3.0/5
Reviews
2,579
Users
70,000
Type
Extension
Updated
Aug 26, 2026
Category
Productivity Workflow
Price
Paid
Featured
No
Visibility
Unlisted
Mature
No
By Google
No
Trusted
Yes

This publisher

1 extension, all still listed

Publisher Contextual Analysis

Trusted
Author
https://justblock.orgView Profile
Country
ES
MX records exist
Yes
Domain exists
Yes
Is disposable
No
Is role-based
Yes
Mailbox exists
Yes
Address
Paseo de la Castellana 194 Madrid, Madrid 28046 ES
Website
Visit
Total Extensions
1
Active
1
Obsolete
0
Listed
0
Unlisted
1
Total Users
70,000
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.
Contextual Risk Factors
Risk Factor
High
The following context increases the overall risk:• 10% increase: Early script execution enables pre-emptive content manipulation
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.
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.
Early Content Script Execution
Risk Factor
Medium
This extension runs content scripts at document_start.

The CWS-published manifest summary reports manifest_version 2, permissions including management, webRequest, webRequestBlocking, cookies, tabs, <all_urls>, and optional_permissions of privacy, contentSettings, downloads. The bundled MV3 manifest has none of these. This discrepancy could indicate a stale listing or a potential delayed update; however, the current analyzed code is MV3 with limited permissions and no malicious behavior.

manifest.json (Line 1)
{  "manifest_version": 3,  "permissions": [    "storage",    "declarativeNetRequest",    "activeTab"  ],  "optional_permissions": [    "tabs"  ]}

By severity

Critical0
High1
Medium0
Low0

Versions scanned

None of the 7 scanned versions have more than one unique code-review finding. Counts are unique findings that include each version.

Extension VersionCode Review Findings
No versions with multiple unique findings.

Files with findings

1 distinct path — top paths by unique finding count:

  • manifest.json1
S.No.
Category
Severity
File
Summary
Found in Version
1Other
high
manifest.json (line 1)The CWS-published manifest summary reports manifest_version 2, permissions including management, webRequest, webRequestBlocking, cookies, tabs, <all_urls>, and optional_permissions of privacy, contentSettings, downloa…
URLs
2

URLs

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justblock.org-https://justblock.org
chromewebstore.google.com/detail/justblock-security/$%7BEXTENSION_ID%7D/reviews%60;https://chromewebstore.google.com/detail/justblock-security/${EXTENSION_ID}/reviews`;

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No IP addresses found
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Code Diff

Compare extension code between any two versions.

0 changed files (scanned top 25 shared text files)

No comparable text files found between these versions.

About this extension

Block ads, trackers, malware, phishing & scams with MV3 rules. No data collection. Lightweight, fast, easy to use.

Read the publisher’s full description

All in one INTERNET SECURITY tool, protection against malware, malicious Chrome Extensions, fraudulent downloads, browser vulnerability and privacy threats. Protect Chrome when you access your email account, your bank account, your company data and any other critical websites. -------------------------------- 20 in 1 SECURITY PACK TO PROTECT CHROME ™ -------------------------------- > BLOCK EMAIL TRACKERS: detects the invisible tracker hidden inside emails and blocks them. > BLOCK ADS: block all types of Ads and video Ads on youtube and all other websites. > PARENTAL CONTROL: block Adult sites to protect your children. > BLOCK MALICIOUS CHROME EXTENSIONS: blocks over one thousand malicious or abusive Chrome extensions. > BLOCK BOTNET: Don't let malicious extensions turn your browser into a botnet. > BLOCK MALWARE: block ransomware, malware and extensions for malicious codes & Potentially Unwanted Programs (PUP) to keep your system running smooth. > BLOCK THIRD PARTY COOKIES: Block Advertising Networks & Facebook from spying on you > PROTECT YOUR PRIVACY: tell sites you don't want to be tracked > PROTECT YOUR PERSONAL DATA: block form's autofill to prevent website from stealing your personal data > PREVENT PASSWORD STEALING: prevents malicious scripts from stealing your saved usernames and passwords. > PREVENT FACEBOOK HIJACK: Hide your status & protect your Facebook™ account from malwares, detect and block infected and malicious requests. > BLOCK MALICIOUS CRYPTOCURRENCY MINERS: don't let Hackers mine cryptocurrencies with your computer without your consent > PROTECT YOUR ANONYMITY: Block websites from tracking your navigation path > PROTECT YOUR SAFETY: Block unsafe websites > BLOCK SHADOW CLICKS: Don't let Chrome™ open links without your consent > BLOCK NOTIFICATIONS: blocks annoying browser's notifications > BLOCK POPUP: blocks javascript browser popups and popup ads > BLOCK CORRUPTED WEBSITES: easily block any distracting or harmful website. > BLOCK AD INJECTION: don't let extensions inject their ads into random pages > HIDE DIGITAL FINGERPRINT: prevent websites from identifying your browser with your unique Digital Fingerprint. ================== JustBlock.org is a security package for Chrome™ to block malware, secure your online privacy & speed up your browser. Your software and your data have moved in the cloud, Chrome™ is a great browser to access all these services but it needs an extra layer of security. Disclaimer: Just Block is a software developed by justblock.org

Screenshots & videos

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Extension files

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