SECURITY REPORT · EXTENSHI SCAN

HTML5 Video Everywhere

Firefox extension·by lejenome

/ 100 SAFETY SCORE

RISKY

Several elevated signals. Read the findings before sharing this with your team.

Likely abandonedsafety score reduced by 30 points

No update in over 6 years

Why this matters

An unmaintained extension keeps whatever flaws it shipped with, and a listing with users but no owner is an attractive target to buy and repurpose.

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 Video Everywhere's safety score vs every other extension we've scanned

Globally

28%of extensions carry more risk

This extension

Riskier ←→ Safer

Ranked against 369,936 extensions

In Privacy & Security

21%of privacy & security extensions carry more risk

This extension

Riskier ←→ Safer

Ranked against 11,537 privacy & security extensions

Findings

median 5Lower is safer

Critical findings

median 0Severity = Critical

Permissions

median 4Declared in manifest

Active users

1670

median 3vs category median

Findings breakdown

Automated security signal · 36 distinct issues across 6 severities

distinct issues
detected

Critical00%

High26%

Needs Review00%

Medium3186%

Low38%

Info00%

Permissions requested

2 risky permissions of 20 total

2 high-risk permissions require attention

This extension requests 20 permissions in total. 2 of them grant broad capabilities that are worth a careful look.

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

Medium

Store local data

Can save data locally in the browser for persistence

Medium