SECURITY REPORT · EXTENSHI SCAN

security.txt

Firefox extension·by harmless.systems
59
/ 100 SAFETY SCORE
RISKY
Several elevated signals. Read the findings before sharing this with your team.

Abandonedsafety score reduced by 40 points

  • No update in over 6 years
  • The developer's website is no longer reachable
  • 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

security.txt's safety score vs every other extension we've scanned
Globally
59.03%of extensions carry more risk
This extension
Riskier ←→ Safer
Ranked across every extension we scan
In its category
49.03%of its category extensions carry more risk
This extension
Riskier ←→ Safer
Ranked within its category
Findings
1
median 38Lower is safer
Risky permissions
1
median 1Critical + high perms
Total permissions
8
median 4All declared perms
Critical findings
0
median 2Severity = Critical

Findings breakdown

Automated security signal · 1 distinct issue across 6 severities
1
distinct issues
detected

Permissions requested

1 risky permission of 8 total
1 high-risk permission require attention
This extension requests 8 permissions in total. 1 of them grant broad capabilities that are worth a careful look.
High
View open tabs

Can see URLs and titles of all open tabs

Medium
Store local data

Can save data locally in the browser for persistence

Info
http://*/.well-known/security.txt

No additional information available.

Info
http://*/security.txt

No additional information available.

Info
http://*/humans.txt

No additional information available.

Info
https://*/.well-known/security.txt

No additional information available.

Info
https://*/security.txt

No additional information available.

Info
https://*/humans.txt

No additional information available.

Are you the author of security.txt?

Claim this extension to respond to findings, add context, and earn a verified badge on extenshi.io.

Claim this extension

Add the badge to your README

Show security.txt's live security score on GitHub or in your docs
Extenshi security score badge preview
Markdown
[![Extenshi security score](https://catalog.extenshi.io/api/badge/2623)](https://catalog.extenshi.io/extensions/2623/security)
HTML
<a href="https://catalog.extenshi.io/extensions/2623/security"><img src="https://catalog.extenshi.io/api/badge/2623" alt="Extenshi security score" /></a>

The badge always shows the current score — it updates automatically after every scan.

Scan performed by extenshi.io · Jul 25, 2026· partial run (some scanners failed)
Browser extensions made transparent.