SECURITY REPORT · EXTENSHI SCAN
Markdown Preview & Converter
Firefox extension·by Markdown Live Preview, MD Viewer & Converter
75
/ 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
Markdown Preview & Converter's safety score vs every other extension we've scanned
Globally
23%of extensions carry more risk
Riskier ←→ Safer
Ranked against 403,022 extensions
In Web Development
13%of web development extensions carry more risk
Riskier ←→ Safer
Ranked against 15,314 web development extensions
Findings
35
median 4Lower is safer
Critical findings
0
median 0Severity = Critical
Permissions
2
median 3Declared in manifest
Active users
2
median 2vs category median
Findings breakdown
Automated security signal · 35 distinct issues across 6 severities
35
distinct issues
detected
detected
Scanners reported 44 raw occurrences; repeats of the same issue at the same location are merged here. The list below shows every occurrence.
Critical00%
High720%
Needs Review00%
Medium2571%
Low39%
Info00%
Permissions requested
2 permissions declared
No risky permissions
2 permissions requested — none are flagged as risky.
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 17, 2026
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