SECURITY REPORT · EXTENSHI SCAN
LeetVault
Firefox extension·by ANTI
0
/ 100 SAFETY SCORE
CAUTION
Mostly fine, but a few things worth reviewing before you install.
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
LeetVault's safety score vs every other extension we've scanned
Globally
21%of extensions carry more risk
Riskier ←→ Safer
Ranked against 369,936 extensions
In Web Development
11%of web development extensions carry more risk
Riskier ←→ Safer
Ranked against 14,329 web development extensions
Findings
34
median 4Lower is safer
Critical findings
2
median 0Severity = Critical
Permissions
9
median 3Declared in manifest
Active users
1
median 3vs category median
Findings breakdown
Automated security signal · 34 distinct issues across 6 severities
34
distinct issues
detected
detected
Critical26%
High26%
Needs Review00%
Medium2368%
Low721%
Info00%
Permissions requested
2 risky permissions of 9 total
2 high-risk permissions require attention
This extension requests 9 permissions in total. 2 of them grant broad capabilities that are worth a careful look.
High
Access browser cookies
Can read and modify cookies, potentially accessing login sessions
High
Manage downloads
Can initiate downloads and access your download history
Medium
Store local data
Can save data locally in the browser for persistence
Medium
Show notifications
Can display desktop notifications outside the browser
Medium
Access current tab
Can temporarily access the content of the active tab when you click the extension
Medium
Access user identity
Can get OAuth2 tokens and access your Google account identity
Medium
Monitor navigation
Can observe and track tab navigation events and URL changes
Low
Schedule tasks
Can schedule periodic background tasks
Info
https://leetcode.com/problems/*
No additional information available.
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Scan performed by extenshi.io · Aug 15, 2026
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