SECURITY REPORT · EXTENSHI SCAN
CardBook
Firefox extension·by Philippe Vigneau
0
/ 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
88.28%of extensions carry more risk
Riskier ←→ Safer
Ranked across every extension we scan
In its category
78.28%of its category extensions carry more risk
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 findings across 5 severities
7
findings
detected
detected
Critical00%
High114%
Medium686%
Low00%
Info00%
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.
Are you the author of CardBook?
Claim this extension to respond to findings, add context, and earn a verified badge on extenshi.io.
Scan performed by extenshi.io · Jun 25, 2026· partial run (some scanners failed)
Browser extensions made transparent.