SECURITY REPORT · EXTENSHI SCAN

KanteiMailClient

Firefox extension·by yomeimrr

/ 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 7 years
Bundles libraries with known vulnerabilities and no fix in sight

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

KanteiMailClient's safety score vs every other extension we've scanned

Globally

42%of extensions carry more risk

This extension

Riskier ←→ Safer

Ranked against 397,522 extensions

In Other

17%of other extensions carry more risk

This extension

Riskier ←→ Safer

Ranked against 28,705 other extensions

Findings

median 3Lower is safer

Critical findings

median 0Severity = Critical

Permissions

median 3Declared in manifest

Active users

median 2vs category median

Findings breakdown

Automated security signal · 7 distinct issues across 6 severities

distinct issues
detected

Scanners reported 14 raw occurrences; repeats of the same issue at the same location are merged here. The list below shows every occurrence.

Critical114%

High114%

Needs Review00%

Medium343%

Low229%

Info00%

Permissions requested

1 risky permission of 6 total

1 high-risk permission require attention

This extension requests 6 permissions in total. 1 of them grant broad capabilities that are worth a careful look.

High