extenshi.io
SECURITY REPORT · EXTENSHI SCAN

CardBook

Firefox extension·by Philippe Vigneau
90
/ 100 SAFETY SCORE
EXCELLENT
Looks clean. No meaningful risks detected in this scan.

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

CardBook's safety score vs every other extension we've scanned
Globally
89.86%of extensions carry more risk
This extension
Riskier ←→ Safer
Ranked across every extension we scan
In its category
79.86%of its category extensions carry more risk
This extension
Riskier ←→ Safer
Ranked within its category
Findings
7
median 38Lower is safer
Risky permissions
2
median 1Critical + high perms
Total permissions
10
median 4All declared perms
Critical findings
0
median 2Severity = Critical

Findings breakdown

Automated security signal · 7 distinct issues across 6 severities
7
distinct issues
detected

Permissions requested

2 risky permissions of 10 total
2 high-risk permissions require attention
This extension requests 10 permissions in total. 2 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
Manage downloads

Can initiate downloads and access your download history

Medium
Read clipboard

Can read text and data currently on your clipboard

Medium
Write to clipboard

Can place content onto your clipboard

Medium
Store local data

Can save data locally in the browser for persistence

Medium
Unlimited local storage

Can store large amounts of data locally without size limits

Medium
Access user identity

Can get OAuth2 tokens and access your Google account identity

Info
https://extensionpay.com/*

No additional information available.

Info
http://*/

No additional information available.

Info
https://*/

No additional information available.

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