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SECURITY REPORT · EXTENSHI SCAN

uBlock Origin Lite

Firefox extension·by Raymond Hill
38
/ 100 SAFETY SCORE
DANGEROUS
Meaningful risk surface. Avoid on managed devices without review.

Automated analysis of publicly available code — not a professional security audit. It may produce false positives and does not prove an extension is unsafe or safe. Treat it as one signal among many. Disclaimer · Report an issue

How it ranks

uBlock Origin Lite's safety score vs every other extension we've scanned
Globally
1%of extensions carry more risk
This extension
Riskier ←→ Safer
Ranked against 409,596 extensions
In Productivity
2%of productivity extensions carry more risk
This extension
Riskier ←→ Safer
Ranked against 8,187 productivity extensions
Findings
127
median 18Lower is safer
Critical findings
1
median 0Severity = Critical
Permissions
7
median 3Declared in manifest
Active users
3908
median 92vs category median

Findings breakdown

Automated security signal · 127 distinct issues across 6 severities
127
distinct issues
detected
Scanners reported 128 raw occurrences; repeats of the same issue at the same location are merged here. The list below shows every occurrence.

Permissions requested

2 risky permissions of 7 total
2 high-risk permissions require attention
This extension requests 7 permissions in total. 2 of them grant broad capabilities that are worth a careful look.
High
Execute scripts in pages

Can inject and execute JavaScript code in web pages

High
User scripts(optional)

Can register and execute user scripts in web pages

Medium
Access current tab

Can temporarily access the content of the active tab when you click the extension

Medium
Store local data

Can save data locally in the browser for persistence

Medium
Unlimited local storage

Can store large amounts of data locally without size limits

Low
Schedule tasks

Can schedule periodic background tasks

Low
Block network requests (declarative)

Can block or redirect network requests using predefined rules without seeing content

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Scan performed by extenshi.io · Jul 26, 2026
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