SECURITY REPORT · EXTENSHI SCAN
Mandiant Advantage
Firefox extension·by Mandiant
71
/ 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
Mandiant Advantage's safety score vs every other extension we've scanned
Globally
9%of extensions carry more risk
Riskier ←→ Safer
Ranked against 415,885 extensions
In Privacy & Security
9%of privacy & security extensions carry more risk
Riskier ←→ Safer
Ranked against 12,625 privacy & security extensions
Findings
100
median 11Lower is safer
Critical findings
5
median 0Severity = Critical
Permissions
5
median 4Declared in manifest
Active users
17
median 3vs category median
Findings breakdown
Automated security signal · 100 distinct issues across 6 severities
100
distinct issues
detected
detected
Critical55%
High2828%
Needs Review00%
Medium4848%
Low1515%
Info44%
Permissions requested
3 risky permissions of 5 total
1 critical permission require attention
This extension requests 5 permissions in total. 3 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
High
View open tabs
Can see URLs and titles of all open tabs
High
Access browsing history
Can read and modify your complete browsing history
Medium
Access user identity
Can get OAuth2 tokens and access your Google account identity
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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