SECURITY REPORT · EXTENSHI SCAN
HTTP Headers Viewer
Firefox extension·by Nevia
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
HTTP Headers Viewer's safety score vs every other extension we've scanned
Globally
32%of extensions carry more risk
Riskier ←→ Safer
Ranked against 403,022 extensions
In Appearance
9%of appearance extensions carry more risk
Riskier ←→ Safer
Ranked against 18,943 appearance extensions
Findings
8
median 3Lower is safer
Critical findings
1
median 0Severity = Critical
Permissions
2
median 2Declared in manifest
Active users
15
median 3vs category median
Findings breakdown
Automated security signal · 8 distinct issues across 6 severities
8
distinct issues
detected
detected
Critical113%
High225%
Needs Review00%
Medium450%
Low113%
Info00%
Permissions requested
2 risky permissions of 2 total
2 high-risk permissions require attention
This extension requests 2 permissions in total. 2 of them grant broad capabilities that are worth a careful look.
High
Observe web requests
Can monitor all network requests made by the browser
High
View open tabs
Can see URLs and titles of all open tabs
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Scan performed by extenshi.io · Aug 11, 2026
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