SECURITY REPORT · EXTENSHI SCAN
Save to Trello
Firefox extension·by Arnaud LEMERCIER
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 7 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
Save to Trello's safety score vs every other extension we've scanned
Globally
70%of extensions carry more risk
Riskier ←→ Safer
Ranked against 369,936 extensions
In Social & Communication
47%of social & communication extensions carry more risk
Riskier ←→ Safer
Ranked against 12,741 social & communication extensions
Findings
4
median 4Lower is safer
Critical findings
0
median 0Severity = Critical
Permissions
2
median 3Declared in manifest
Active users
883
median 3vs category median
Findings breakdown
Automated security signal · 4 distinct issues across 6 severities
4
distinct issues
detected
detected
Critical00%
High125%
Needs Review00%
Medium250%
Low125%
Info00%
Permissions requested
1 risky permission of 2 total
1 high-risk permission require attention
This extension requests 2 permissions in total. 1 of them grant broad capabilities that are worth a careful look.
High
View open tabs
Can see URLs and titles of all open tabs
Medium
Store local data
Can save data locally in the browser for persistence
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Scan performed by extenshi.io · Aug 24, 2026
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