SECURITY REPORT · EXTENSHI SCAN
Full Screen Sci-hub
Firefox extension·by Adam
66
/ 100 SAFETY SCORE
CAUTION
Mostly fine, but a few things worth reviewing before you install.
Likely abandonedsafety score reduced by 30 points
- No update in over 5 years
Why this matters
An unmaintained extension keeps whatever flaws it shipped with, and a listing with users but no owner is an attractive target to buy and repurpose.
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
Full Screen Sci-hub's safety score vs every other extension we've scanned
Globally
79%of extensions carry more risk
Riskier ←→ Safer
Ranked against 397,380 extensions
In Other
53%of other extensions carry more risk
Riskier ←→ Safer
Ranked against 28,696 other extensions
Findings
3
median 3Lower is safer
Critical findings
0
median 0Severity = Critical
Permissions
1
median 3Declared in manifest
Active users
11
median 2vs category median
Findings breakdown
Automated security signal · 3 distinct issues across 6 severities
3
distinct issues
detected
detected
Critical00%
High00%
Needs Review00%
Medium267%
Low133%
Info00%
Permissions requested
1 risky permission of 1 total
1 critical permission require attention
This extension requests 1 permission in total. 1 of them grant broad capabilities that are worth a careful look.
Critical
Access to all websites
Can read and modify content on every website you visit
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Scan performed by extenshi.io · Aug 7, 2026
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