Is uBlock Origin Lite safe to use?

uBlock Origin Lite has a security risk score of 85.51/100 (CRITICAL risk). Our security analysis detected 330035 findings. Review the detailed security assessment below to understand the specific risks before installation.

What are the security risks of uBlock Origin Lite?

Based on our automated security analysis, uBlock Origin Lite presents critical risk level. The extension is analyzed for malware patterns, secret exposure, network communications, permissions, and supply chain vulnerabilities.

How is the security score calculated?

Risky Plugins calculates security scores using weighted categories: severity of findings (25 points max), malware detections (35 points), secret exposure (28 points), network communications (10 points), and obfuscation (10 points). Scores range from 0-100, with higher scores indicating greater risk.

What does CRITICAL, HIGH, MEDIUM, LOW, MINIMAL risk mean?

CRITICAL (80-100): Severe security issues like malware. HIGH (60-79): Significant vulnerabilities. MEDIUM (40-59): Moderate security concerns. LOW (20-39): Minor issues. MINIMAL (0-19): Very low risk. Always review findings before installing any extension.

Is "uBlock Origin Lite" on Chrome Web Store Safe to Install?

[email protected] · chrome · v2026.405.2010

uBO Lite (uBOL) is an efficient MV3-based content blocker. The default ruleset corresponds to uBlock Origin's default filterset: - uBlock Origin's built-in filter lists - EasyList - EasyPrivacy - Peter Lowe’s Ad and tracking server list You can enable more rulesets by visiting the options page -- click the _Cogs_ icon in the popup panel. uBOL is entirely declarative, meaning there is no need for a permanent uBOL process for the filtering to occur, and CSS/JS injection-based content filtering is performed reliably by the browser itself rather than by the extension. This means that uBOL itself does not consume CPU/memory resources while content blocking is ongoing -- uBOL's service worker process is required _only_ when you interact with the popup panel or the option pages.

Risk Assessment

Analyzed

85.51

out of 100

CRITICAL

330035 security findings detected across all analyzers

Chrome extension requesting 5 permissions

Severity Breakdown

Critical

3703

High

326332

Medium

Low

Info

Finding Categories

1000

Malware Signatures

YARA Rules Matched

13 rules(1000 hits)

postinstall obfuscation postinstall network communication postinstall file manipulation postinstall system command postinstall file download DebuggerStatementsShouldNotBeUsed postinstall crypto operations postinstall registry modification credential env files postinstall persistence mechanism credential skype data credential steam data NoUseWeakRandom

Requested Permissions

5 permissions

<all_urls>

Access and modify data on every website you visit

Dangerous

activeTab

Medium

declarativeNetRequest

Low

scripting

Low

storage

Low

About This Extension

Detailed Findings

1000 total

YARA Rule Matches

13 rules

Security Analysis Summary

Security Analysis Overview

uBlock Origin Lite is a Chrome Web Store extension published by [email protected]. Version 2026.405.2010 has been analyzed by the Risky Plugins security platform, receiving a risk score of 85.51/100 (CRITICAL risk) based on 330035 security findings.

Risk Assessment

This extension presents critical security risk. Severe issues were detected, potentially including malware indicators, exposed secrets, or dangerous behaviors. Installation is strongly discouraged until these issues are addressed.

Findings Breakdown

High: 3703 finding(s)
Medium: 326332 finding(s)

What Was Analyzed

The security assessment covers multiple analysis categories:

Malware Detection: YARA rule matching against 2,400+ malware signatures
Secret Detection: Scanning for exposed API keys, tokens, and credentials
Static Analysis: Code-level security analysis for common vulnerability patterns
Network Analysis: Detection of suspicious network communications and endpoints
Obfuscation Detection: Identification of code obfuscation techniques

Developer Information

uBlock Origin Lite is published by [email protected] on the Chrome Web Store marketplace. The extension has approximately 15.0M users.

Recommendation

This extension is not recommended for installation without thorough manual review. Consider alternatives with lower risk scores, or contact the developer to address the identified security concerns.

Source Code Viewer

Source Code Not Available

Source code is not available for this version of the extension.