SECURITY REPORT · EXTENSHI SCAN
I Heard you like license
Firefox extension·by Andrei Sebyakin
0
/ 100 SAFETY SCORE
CAUTION
Mostly fine, but a few things worth reviewing before you install.
Likely abandonedsafety score reduced by 30 points
- No update in over 2 years
- The developer's website is no longer reachable
- Bundles libraries with known vulnerabilities and no fix in sight
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
I Heard you like license's safety score vs every other extension we've scanned
Globally
67.12%of extensions carry more risk
Riskier ←→ Safer
Ranked across every extension we scan
In its category
57.120000000000005%of its category extensions carry more risk
Riskier ←→ Safer
Ranked within its category
Findings
3
median 38Lower is safer
Risky permissions
6
median 1Critical + high perms
Total permissions
9
median 4All declared perms
Critical findings
0
median 2Severity = Critical
Findings breakdown
Automated security signal · 3 distinct issues across 6 severities
3
distinct issues
detected
detected
Critical00%
High133%
Needs Review00%
Medium133%
Low133%
Info00%
Permissions requested
6 risky permissions of 9 total
1 critical permission require attention
This extension requests 9 permissions in total. 6 of them grant broad capabilities that are worth a careful look.
Critical
Access to all websites
Can read and modify content on every website you visit
High
Control proxy settings
Can route your browser traffic through a proxy server
High
Observe web requests
Can monitor all network requests made by the browser
High
Block and modify web requests
Can intercept, block, or modify any network request before it completes
High
View open tabs
Can see URLs and titles of all open tabs
High
Access browser cookies
Can read and modify cookies, potentially accessing login sessions
Medium
Store local data
Can save data locally in the browser for persistence
Info
*://play.shikimori.org/*
No additional information available.
Info
*://shikimori.org/*
No additional information available.
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Scan performed by extenshi.io · Jul 25, 2026· partial run (some scanners failed)
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