SECURITY REPORT · EXTENSHI SCAN
Mod Checker
Firefox extension·by delulu
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
Mod Checker's safety score vs every other extension we've scanned
Globally
39%of extensions carry more risk
Riskier ←→ Safer
Ranked against 369,936 extensions
In Search Tools
16%of search tools extensions carry more risk
Riskier ←→ Safer
Ranked against 15,409 search tools extensions
Findings
10
median 4Lower is safer
Critical findings
2
median 0Severity = Critical
Permissions
5
median 3Declared in manifest
Active users
0
median 2vs category median
Findings breakdown
Automated security signal · 10 distinct issues across 6 severities
10
distinct issues
detected
detected
Critical220%
High330%
Needs Review00%
Medium220%
Low330%
Info00%
Permissions requested
3 risky permissions of 5 total
3 high-risk permissions require attention
This extension requests 5 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
Store local data
Can save data locally in the browser for persistence
Medium
Write to clipboard
Can place content onto your clipboard
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Scan performed by extenshi.io · Aug 23, 2026
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