SECURITY REPORT · EXTENSHI SCAN
Addon Update Notifier
Firefox extension·by JackymanCS4
83
/ 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
Addon Update Notifier's safety score vs every other extension we've scanned
Globally
45%of extensions carry more risk
Riskier ←→ Safer
Ranked against 384,505 extensions
In Alerts & Updates
23%of alerts & updates extensions carry more risk
Riskier ←→ Safer
Ranked against 6,899 alerts & updates extensions
Findings
5
median 4Lower is safer
Critical findings
1
median 0Severity = Critical
Permissions
4
median 3Declared in manifest
Active users
36
median 1vs category median
Findings breakdown
Automated security signal · 5 distinct issues across 6 severities
5
distinct issues
detected
detected
Critical120%
High00%
Needs Review00%
Medium360%
Low120%
Info00%
Permissions requested
1 risky permission of 4 total
1 critical permission require attention
This extension requests 4 permissions in total. 1 of them grant broad capabilities that are worth a careful look.
Critical
Manage other extensions
Can enable, disable, or uninstall other browser extensions
Medium
Show notifications
Can display desktop notifications outside the browser
Medium
Store local data
Can save data locally in the browser for persistence
Low
Schedule tasks
Can schedule periodic background tasks
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Scan performed by extenshi.io · Sep 8, 2026
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