SECURITY REPORT · EXTENSHI SCAN
Lettres Gratuites
Firefox extension·by Lettres Gratuites
85
/ 100 SAFETY SCORE
EXCELLENT
Looks clean. No meaningful risks detected in this scan.
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
Lettres Gratuites's safety score vs every other extension we've scanned
Globally
44%of extensions carry more risk
Riskier ←→ Safer
Ranked against 415,874 extensions
In Other
28%of other extensions carry more risk
Riskier ←→ Safer
Ranked against 28,829 other extensions
Findings
4
median 6Lower is safer
Critical findings
1
median 0Severity = Critical
Permissions
11
median 3Declared in manifest
Active users
1440
median 2vs category median
Findings breakdown
Automated security signal · 4 distinct issues across 6 severities
4
distinct issues
detected
detected
Critical125%
High00%
Needs Review00%
Medium250%
Low125%
Info00%
Permissions requested
11 permissions declared
No risky permissions
11 permissions requested — none are flagged as risky.
Medium
Store local data
Can save data locally in the browser for persistence
Info
https://www.google.com/*
No additional information available.
Info
https://www.google.fr/*
No additional information available.
Info
https://www.google.be/*
No additional information available.
Info
https://www.google.ca/*
No additional information available.
Info
https://www.google.ch/*
No additional information available.
Info
*://*/
No additional information available.
Info
*://*.lettres-gratuites.com/*
No additional information available.
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Scan performed by extenshi.io · Oct 23, 2026
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