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SECURITY REPORT · EXTENSHI SCAN

Laboratory (Content Security Policy / CSP Toolkit)

Firefox extension·by April King
47
/ 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 5 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

Laboratory (Content Security Policy / CSP Toolkit)'s safety score vs every other extension we've scanned
Globally
30%of extensions carry more risk
This extension
Riskier ←→ Safer
Ranked against 409,596 extensions
In Privacy & Security
23%of privacy & security extensions carry more risk
This extension
Riskier ←→ Safer
Ranked against 12,550 privacy & security extensions
Findings
19
median 5Lower is safer
Critical findings
5
median 0Severity = Critical
Permissions
10
median 4Declared in manifest
Active users
1661
median 3vs category median

Findings breakdown

Automated security signal · 19 distinct issues across 6 severities
19
distinct issues
detected
Scanners reported 28 raw occurrences; repeats of the same issue at the same location are merged here. The list below shows every occurrence.

Permissions requested

5 risky permissions of 10 total
5 high-risk permissions require attention
This extension requests 10 permissions in total. 5 of them grant broad capabilities that are worth a careful look.
High
View open tabs

Can see URLs and titles of all open tabs

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

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

Medium
Store local data

Can save data locally in the browser for persistence

Medium
Monitor navigation

Can observe and track tab navigation events and URL changes

Info
ftp://*/*

No additional information available.

Info
ws://*/*

No additional information available.

Info
wss://*/*

No additional information available.

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Scan performed by extenshi.io · Aug 15, 2026
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