SECURITY REPORT · EXTENSHI SCAN
Flash Player 2021
Firefox extension·by 17029170
0
/ 100 SAFETY SCORE
RISKY
Several elevated signals. Read the findings before sharing this with your team.
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
Flash Player 2021's safety score vs every other extension we've scanned
Globally
7%of extensions carry more risk
Riskier ←→ Safer
Ranked against 369,936 extensions
In Social & Communication
3%of social & communication extensions carry more risk
Riskier ←→ Safer
Ranked against 12,741 social & communication extensions
Findings
30
median 4Lower is safer
Critical findings
1
median 0Severity = Critical
Permissions
4
median 3Declared in manifest
Active users
217
median 3vs category median
Findings breakdown
Automated security signal · 30 distinct issues across 6 severities
30
distinct issues
detected
detected
Scanners reported 36 raw occurrences; repeats of the same issue at the same location are merged here. The list below shows every occurrence.
Critical13%
High517%
Needs Review00%
Medium1757%
Low620%
Info13%
Permissions requested
3 risky permissions of 4 total
1 critical permission require attention
This extension requests 4 permissions in total. 3 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
Access all HTTPS sites
Can read and modify content on all encrypted websites
High
Access all HTTP sites
Can read and modify content on all non-encrypted websites
Info
https://modernkit.one/*
No additional information available.
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Scan performed by extenshi.io · Aug 7, 2026
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