SECURITY REPORT · EXTENSHI SCAN
All Mangas Reader
Firefox extension·by plduhoux
0
/ 100 SAFETY SCORE
RISKY
Several elevated signals. Read the findings before sharing this with your team.
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
1%of extensions carry more risk
Riskier ←→ Safer
Ranked against 357,609 extensions
In Games Entertainment
0%of games entertainment extensions carry more risk
Riskier ←→ Safer
Ranked against 7,492 games entertainment extensions
Findings
139
median 4Lower is safer
Critical findings
1
median 0Severity = Critical
Permissions
14
median 3Declared in manifest
Active users
901
median 4vs category median
Findings breakdown
Automated security signal · 139 distinct issues across 6 severities
139
distinct issues
detected
detected
Scanners reported 186 raw occurrences; repeats of the same issue at the same location are merged here. The list below shows every occurrence.
Critical11%
High3727%
Needs Review00%
Medium8460%
Low96%
Info86%
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 · Jul 25, 2026
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