SECURITY REPORT · EXTENSHI SCAN
PubPeer Plus
Firefox extension·by KO66
81
/ 100 SAFETY SCORE
CAUTION
Mostly fine, but a few things worth reviewing before you install.
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
PubPeer Plus's safety score vs every other extension we've scanned
Globally
29%of extensions carry more risk
Riskier ←→ Safer
Ranked against 415,885 extensions
In Other
15%of other extensions carry more risk
Riskier ←→ Safer
Ranked against 28,831 other extensions
Findings
35
median 6Lower is safer
Critical findings
4
median 0Severity = Critical
Permissions
5
median 3Declared in manifest
Active users
2
median 2vs category median
Findings breakdown
Automated security signal · 35 distinct issues across 6 severities
35
distinct issues
detected
detected
Critical411%
High39%
Needs Review00%
Medium2674%
Low26%
Info00%
Permissions requested
3 risky permissions of 5 total
3 high-risk permissions require attention
This extension requests 5 permissions in total. 3 of them grant broad capabilities that are worth a careful look.
High
View open tabs
Can see URLs and titles of all open tabs
High
Access all HTTP sites
Can read and modify content on all non-encrypted websites
High
Access all HTTPS sites
Can read and modify content on all encrypted websites
Medium
Monitor navigation
Can observe and track tab navigation events and URL changes
Medium
Store local data
Can save data locally in the browser for persistence
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Scan performed by extenshi.io · Oct 22, 2026
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