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SECURITY REPORT · EXTENSHI SCAN

All Mangas Reader

Firefox extension·by plduhoux
15
/ 100 SAFETY SCORE
CRITICAL
Severe indicators. Treat as unsafe until the developer addresses these findings.

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

All Mangas Reader's safety score vs every other extension we've scanned
Globally
0%of extensions carry more risk
This extension
Riskier ←→ Safer
Ranked against 409,539 extensions
In Games Entertainment
0%of games entertainment extensions carry more risk
This extension
Riskier ←→ Safer
Ranked against 9,537 games entertainment extensions
Findings
97
median 4Lower is safer
Critical findings
3
median 0Severity = Critical
Permissions
14
median 3Declared in manifest
Active users
899
median 4vs category median

Findings breakdown

Automated security signal · 97 distinct issues across 6 severities
97
distinct issues
detected
Scanners reported 127 raw occurrences; repeats of the same issue at the same location are merged here. The list below shows every occurrence.

Permissions requested

5 risky permissions of 14 total
5 high-risk permissions require attention
This extension requests 14 permissions in total. 5 of them grant broad capabilities that are worth a careful look.
High
View open tabs

Can see URLs and titles of all open tabs

High
Execute scripts in pages

Can inject and execute JavaScript code in web pages

High
Manage downloads

Can initiate downloads and access your download history

High
Access browser cookies

Can read and modify cookies, potentially accessing login sessions

High
Observe web requests

Can monitor all network requests made by the browser

Medium
Unlimited local storage

Can store large amounts of data locally without size limits

Medium
Store local data

Can save data locally in the browser for persistence

Medium
Add context menu items

Can add custom items to the right-click context menu

Medium
Show notifications

Can display desktop notifications outside the browser

Medium
Monitor navigation

Can observe and track tab navigation events and URL changes

Medium
Block requests with host access

Can block or redirect network requests and requires host permissions

Low
Schedule tasks

Can schedule periodic background tasks

Low
Block network requests (declarative)

Can block or redirect network requests using predefined rules without seeing content

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Scan performed by extenshi.io · Sep 7, 2026
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