extenshi.io
SECURITY REPORT · EXTENSHI SCAN

Manga Mark

Firefox extension·by Quyen
76
/ 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

Manga Mark's safety score vs every other extension we've scanned
Globally
16%of extensions carry more risk
This extension
Riskier ←→ Safer
Ranked against 415,885 extensions
In Bookmarks
11%of bookmarks extensions carry more risk
This extension
Riskier ←→ Safer
Ranked against 6,519 bookmarks extensions
Findings
28
median 10Lower is safer
Critical findings
1
median 0Severity = Critical
Permissions
6
median 3Declared in manifest
Active users
1
median 2vs category median

Findings breakdown

Automated security signal · 28 distinct issues across 6 severities
28
distinct issues
detected
Scanners reported 41 raw occurrences; repeats of the same issue at the same location are merged here. The list below shows every occurrence.

Permissions requested

3 risky permissions of 6 total
3 high-risk permissions require attention
This extension requests 6 permissions in total. 3 of them grant broad capabilities that are worth a careful look.
High
Access browser cookies

Can read and modify cookies, potentially accessing login sessions

High
Access all HTTP sites

Can read and modify content on all non-encrypted websites

High
Access all HTTPS sites

Can read and modify content on all encrypted websites

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

Low
Schedule tasks

Can schedule periodic background tasks

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Scan performed by extenshi.io · Oct 23, 2026
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