SECURITY REPORT · EXTENSHI SCAN
In-Browser Style Linter
Firefox extension·by Howard Chiam
0
/ 100 SAFETY SCORE
DANGEROUS
Meaningful risk surface. Avoid on managed devices without review.
Likely abandonedsafety score reduced by 30 points
- No update in over 6 years
Why this matters
An unmaintained extension keeps whatever flaws it shipped with, and a listing with users but no owner is an attractive target to buy and repurpose.
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
In-Browser Style Linter's safety score vs every other extension we've scanned
Globally
12%of extensions carry more risk
Riskier ←→ Safer
Ranked against 369,936 extensions
In Web Development
6%of web development extensions carry more risk
Riskier ←→ Safer
Ranked against 14,329 web development extensions
Findings
33
median 4Lower is safer
Critical findings
1
median 0Severity = Critical
Permissions
3
median 3Declared in manifest
Active users
1
median 3vs category median
Findings breakdown
Automated security signal · 33 distinct issues across 6 severities
33
distinct issues
detected
detected
Critical13%
High824%
Needs Review00%
Medium2473%
Low00%
Info00%
Permissions requested
3 permissions declared
No risky permissions
3 permissions requested — none are flagged as risky.
Medium
Access current tab
Can temporarily access the content of the active tab when you click the extension
Medium
Store local data
Can save data locally in the browser for persistence
Medium
Unlimited local storage
Can store large amounts of data locally without size limits
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Scan performed by extenshi.io · Aug 12, 2026
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