SECURITY REPORT · EXTENSHI SCAN
Blackout
Firefox extension·by Czar16
77
/ 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
Blackout's safety score vs every other extension we've scanned
Globally
31%of extensions carry more risk
Riskier ←→ Safer
Ranked against 403,022 extensions
In Privacy & Security
24%of privacy & security extensions carry more risk
Riskier ←→ Safer
Ranked against 12,537 privacy & security extensions
Findings
9
median 5Lower is safer
Critical findings
1
median 0Severity = Critical
Permissions
5
median 4Declared in manifest
Active users
6
median 3vs category median
Findings breakdown
Automated security signal · 9 distinct issues across 6 severities
9
distinct issues
detected
detected
Critical111%
High111%
Needs Review00%
Medium667%
Low111%
Info00%
Permissions requested
3 risky permissions of 5 total
1 critical permission require attention
This extension requests 5 permissions in total. 3 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
High
Execute scripts in pages
Can inject and execute JavaScript code in web pages
High
View open tabs
Can see URLs and titles of all open tabs
Medium
Store local data
Can save data locally in the browser for persistence
Medium
Access current tab
Can temporarily access the content of the active tab when you click the extension
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Scan performed by extenshi.io · Aug 30, 2026
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