SECURITY REPORT · EXTENSHI SCAN
Historia
Firefox extension·by erosman
0
/ 100 SAFETY SCORE
RISKY
Several elevated signals. Read the findings before sharing this with your team.
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
Historia's safety score vs every other extension we've scanned
Globally
19%of extensions carry more risk
Riskier ←→ Safer
Ranked against 347,108 extensions
In Privacy & Security
12%of privacy & security extensions carry more risk
Riskier ←→ Safer
Ranked against 9,919 privacy & security extensions
Findings
21
median 4Lower is safer
Critical findings
1
median 0Severity = Critical
Permissions
8
median 4Declared in manifest
Active users
522
median 3vs category median
Findings breakdown
Automated security signal · 21 distinct issues across 6 severities
21
distinct issues
detected
detected
Critical15%
High314%
Needs Review00%
Medium1571%
Low210%
Info00%
Permissions requested
4 risky permissions of 8 total
1 critical permission require attention
This extension requests 8 permissions in total. 4 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
Manage downloads
Can initiate downloads and access your download history
High
Access browsing history
Can read and modify your complete browsing history
High
Access browser cookies
Can read and modify cookies, potentially accessing login sessions
Medium
Access current tab
Can temporarily access the content of the active tab when you click the extension
Medium
Show notifications
Can display desktop notifications outside the browser
Medium
Store local data
Can save data locally in the browser for persistence
Low
Detect idle state
Can detect when your machine is idle, active, or locked
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Scan performed by extenshi.io · Aug 10, 2026
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