SECURITY REPORT · EXTENSHI SCAN
Ovrlay
Firefox extension·by Zusor
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 6 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
Ovrlay's safety score vs every other extension we've scanned
Globally
50%of extensions carry more risk
Riskier ←→ Safer
Ranked against 369,936 extensions
In Other
21%of other extensions carry more risk
Riskier ←→ Safer
Ranked against 26,888 other extensions
Findings
14
median 3Lower is safer
Critical findings
0
median 0Severity = Critical
Permissions
2
median 3Declared in manifest
Active users
1
median 2vs category median
Findings breakdown
Automated security signal · 14 distinct issues across 6 severities
14
distinct issues
detected
detected
Scanners reported 17 raw occurrences; repeats of the same issue at the same location are merged here. The list below shows every occurrence.
Critical00%
High17%
Needs Review00%
Medium643%
Low750%
Info00%
Permissions requested
2 permissions declared
No risky permissions
2 permissions requested — none are flagged as risky.
Medium
Store local data
Can save data locally in the browser for persistence
Info
*://*/*
No additional information available.
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Scan performed by extenshi.io · Aug 22, 2026
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