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SECURITY REPORT · EXTENSHI SCAN

Prevent Pwned Passwords

Firefox extension·by Chris Wilson
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

Prevent Pwned Passwords's safety score vs every other extension we've scanned
Globally
67%of extensions carry more risk
This extension
Riskier ←→ Safer
Ranked against 415,831 extensions
In Privacy & Security
61%of privacy & security extensions carry more risk
This extension
Riskier ←→ Safer
Ranked against 12,618 privacy & security extensions
Findings
9
median 9Lower is safer
Critical findings
0
median 0Severity = Critical
Permissions
6
median 4Declared in manifest
Active users
46
median 3vs category median

Findings breakdown

Automated security signal · 9 distinct issues across 6 severities
9
distinct issues
detected

Permissions requested

3 risky permissions of 6 total
3 high-risk permissions require attention
This extension requests 6 permissions in total. 3 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
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
Show notifications

Can display desktop notifications outside the browser

Medium
Store local data

Can save data locally in the browser for persistence

Medium
Add context menu items

Can add custom items to the right-click context menu

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Scan performed by extenshi.io · Oct 22, 2026
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