SECURITY REPORT · EXTENSHI SCAN
Site Update Checker
Firefox extension·by TheRandomCode
78
/ 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
Site Update Checker's safety score vs every other extension we've scanned
Globally
33%of extensions carry more risk
Riskier ←→ Safer
Ranked against 397,149 extensions
In Feeds News Blogging
14%of feeds news blogging extensions carry more risk
Riskier ←→ Safer
Ranked against 7,280 feeds news blogging extensions
Findings
9
median 4Lower is safer
Critical findings
1
median 0Severity = Critical
Permissions
2
median 3Declared in manifest
Active users
19
median 2vs category median
Findings breakdown
Automated security signal · 9 distinct issues across 6 severities
9
distinct issues
detected
detected
Critical111%
High00%
Needs Review00%
Medium778%
Low111%
Info00%
Permissions requested
1 risky permission of 2 total
1 critical permission require attention
This extension requests 2 permissions in total. 1 of them grant broad capabilities that are worth a careful look.
Critical
Access to all websites
Can read and modify content on every website you visit
Medium
Show notifications
Can display desktop notifications outside the browser
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Scan performed by extenshi.io · Aug 24, 2026
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