SECURITY REPORT · EXTENSHI SCAN
42FM
Firefox extension·by loczek
0
/ 100 SAFETY SCORE
CAUTION
Mostly fine, but a few things worth reviewing before you install.
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
42FM's safety score vs every other extension we've scanned
Globally
16%of extensions carry more risk
Riskier ←→ Safer
Ranked against 144,092 extensions
In Photos Music Videos
6%of photos music videos extensions carry more risk
Riskier ←→ Safer
Ranked against 7,138 photos music videos extensions
Findings
16
median 3Lower is safer
Critical findings
1
median 0Severity = Critical
Permissions
3
median 3Declared in manifest
Active users
115
median 8vs category median
Findings breakdown
Automated security signal · 16 distinct issues across 6 severities
16
distinct issues
detected
detected
Scanners reported 19 raw occurrences; repeats of the same issue at the same location are merged here. The list below shows every occurrence.
Critical16%
High16%
Needs Review00%
Medium1063%
Low425%
Info00%
Permissions requested
1 risky permission of 3 total
1 high-risk permission require attention
This extension requests 3 permissions in total. 1 of them grant broad capabilities that are worth a careful look.
High
Execute scripts in pages
Can inject and execute JavaScript code in web pages
Info
*://twitch.tv/*
No additional information available.
Info
*://www.twitch.tv/*
No additional information available.
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Scan performed by extenshi.io · Jul 25, 2026
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