SECURITY REPORT · EXTENSHI SCAN
Multiplex YT Player
Firefox extension·by blackDragon
72
/ 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
Multiplex YT Player's safety score vs every other extension we've scanned
Globally
17%of extensions carry more risk
Riskier ←→ Safer
Ranked against 397,522 extensions
In Photos Music Videos
7%of photos music videos extensions carry more risk
Riskier ←→ Safer
Ranked against 11,112 photos music videos extensions
Findings
28
median 4Lower is safer
Critical findings
1
median 0Severity = Critical
Permissions
9
median 3Declared in manifest
Active users
0
median 6vs category median
Findings breakdown
Automated security signal · 28 distinct issues across 6 severities
28
distinct issues
detected
detected
Critical14%
High311%
Needs Review00%
Medium1554%
Low932%
Info00%
Permissions requested
3 risky permissions of 9 total
1 critical permission require attention
This extension requests 9 permissions in total. 3 of them grant broad capabilities that are worth a careful look.
Critical
Communicate with desktop apps
Can exchange messages with applications installed on your computer
High
Observe web requests
Can monitor all network requests made by the browser
High
Block and modify web requests
Can intercept, block, or modify any network request before it completes
Info
https://www.youtube.com/*
No additional information available.
Info
https://youtube.com/*
No additional information available.
Info
*://*.googlevideo.com/*
No additional information available.
Info
*://*.youtube.com/*
No additional information available.
Info
*://*.ytimg.com/*
No additional information available.
Info
*://127.0.0.1/*
No additional information available.
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Scan performed by extenshi.io · Aug 18, 2026
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