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SECURITY REPORT · EXTENSHI SCAN

Teaful DevTools

Firefox extension·by Aral Roca
22
/ 100 SAFETY SCORE
DANGEROUS
Meaningful risk surface. Avoid on managed devices without review.

Likely abandonedsafety score reduced by 30 points

  • No update in over 4 years
  • Built on Manifest V2, which Chrome and Edge are retiring
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

Teaful DevTools's safety score vs every other extension we've scanned
Globally
2%of extensions carry more risk
This extension
Riskier ←→ Safer
Ranked against 409,539 extensions
In Developer Tools
5%of developer tools extensions carry more risk
This extension
Riskier ←→ Safer
Ranked against 3,713 developer tools extensions
Findings
62
median 16Lower is safer
Critical findings
2
median 1Severity = Critical
Permissions
4
median 3Declared in manifest
Active users
0
median 44vs category median

Findings breakdown

Automated security signal · 62 distinct issues across 6 severities
62
distinct issues
detected

Permissions requested

4 risky permissions of 4 total
1 critical permission require attention
This extension requests 4 permissions in total. 4 of them grant broad capabilities that are worth a careful look.
Critical
Access to all websites

Can read and modify content on every website you visit

High
Access all HTTP sites

Can read and modify content on all non-encrypted websites

High
Access all HTTPS sites

Can read and modify content on all encrypted websites

High
Developer tools

Can extend browser developer tools with custom panels

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Scan performed by extenshi.io · Aug 14, 2026
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