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SECURITY REPORT · EXTENSHI SCAN

Custom Background Facebook Theme

Firefox extension·by pbion.com
46
/ 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

Custom Background Facebook Theme's safety score vs every other extension we've scanned
Globally
27%of extensions carry more risk
This extension
Riskier ←→ Safer
Ranked against 401,999 extensions
In Social & Communication
13%of social & communication extensions carry more risk
This extension
Riskier ←→ Safer
Ranked against 13,639 social & communication extensions
Findings
31
median 5Lower is safer
Critical findings
2
median 0Severity = Critical
Permissions
4
median 3Declared in manifest
Active users
3
median 3vs category median

Findings breakdown

Automated security signal · 31 distinct issues across 6 severities
31
distinct issues
detected

Permissions requested

1 risky permission of 4 total
1 high-risk permission require attention
This extension requests 4 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
https://*.facebook.com/*

No additional information available.

Info
https://*.fbion.com/*

No additional information available.

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Scan performed by extenshi.io · Aug 3, 2026
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