SECURITY REPORT · EXTENSHI SCAN
One-click Wayback
Firefox extension·by Tom
53
/ 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
One-click Wayback's safety score vs every other extension we've scanned
Globally
48%of extensions carry more risk
Riskier ←→ Safer
Ranked against 397,225 extensions
In Appearance
20%of appearance extensions carry more risk
Riskier ←→ Safer
Ranked against 18,859 appearance extensions
Findings
1
median 3Lower is safer
Critical findings
1
median 0Severity = Critical
Permissions
1
median 2Declared in manifest
Active users
40
median 3vs category median
Findings breakdown
Automated security signal · 1 distinct issue across 6 severities
1
distinct issues
detected
detected
Critical1100%
High00%
Needs Review00%
Medium00%
Low00%
Info00%
Permissions requested
1 permission declared
No risky permissions
1 permission requested — none are flagged as risky.
Medium
Access current tab
Can temporarily access the content of the active tab when you click the extension
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Scan performed by extenshi.io · Aug 21, 2026
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