SECURITY REPORT · EXTENSHI SCAN
YouTube Fullscreen → Ctrl+Alt+S
Firefox extension·by glochri86
76
/ 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
YouTube Fullscreen → Ctrl+Alt+S's safety score vs every other extension we've scanned
Globally
29%of extensions carry more risk
Riskier ←→ Safer
Ranked against 409,539 extensions
In Photos Music Videos
13%of photos music videos extensions carry more risk
Riskier ←→ Safer
Ranked against 11,181 photos music videos extensions
Findings
7
median 4Lower is safer
Critical findings
1
median 0Severity = Critical
Permissions
2
median 3Declared in manifest
Active users
1
median 6vs category median
Findings breakdown
Automated security signal · 7 distinct issues across 6 severities
7
distinct issues
detected
detected
Critical114%
High114%
Needs Review00%
Medium343%
Low229%
Info00%
Permissions requested
1 risky permission of 2 total
1 critical permission require attention
This extension requests 2 permissions in total. 1 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
Info
*://*.youtube.com/*
No additional information available.
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Scan performed by extenshi.io · Aug 25, 2026
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