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SECURITY REPORT · EXTENSHI SCAN

HTML5 Playback Speed Control

Firefox extension·by DrUlysses
84
/ 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

HTML5 Playback Speed Control's safety score vs every other extension we've scanned
Globally
53%of extensions carry more risk
This extension
Riskier ←→ Safer
Ranked against 415,831 extensions
In Social & Communication
36%of social & communication extensions carry more risk
This extension
Riskier ←→ Safer
Ranked against 13,745 social & communication extensions
Findings
7
median 7Lower is safer
Critical findings
2
median 0Severity = Critical
Permissions
3
median 3Declared in manifest
Active users
1
median 4vs category median

Findings breakdown

Automated security signal · 7 distinct issues across 6 severities
7
distinct issues
detected

Permissions requested

3 permissions declared
No risky permissions
3 permissions requested — none are flagged as risky.
Medium
Access current tab

Can temporarily access the content of the active tab when you click the extension

Medium
Store local data

Can save data locally in the browser for persistence

Info
*://*/*

No additional information available.

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Scan performed by extenshi.io · Oct 22, 2026
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