SECURITY REPORT · EXTENSHI SCAN
Advanced Subtitle Effects
Firefox extension·by Majood
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
Advanced Subtitle Effects's safety score vs every other extension we've scanned
Globally
2%of extensions carry more risk
Riskier ←→ Safer
Ranked against 120,718 extensions
In Language Support
0%of language support extensions carry more risk
Riskier ←→ Safer
Ranked against 9,394 language support extensions
Findings
135
median 3Lower is safer
Critical findings
1
median 0Severity = Critical
Permissions
20
median 3Declared in manifest
Active users
0
median 7vs category median
Findings breakdown
Automated security signal · 135 findings across 5 severities
135
findings
detected
detected
Critical11%
High3526%
Medium6850%
Low2821%
Info32%
Permissions requested
20 permissions declared
No risky permissions
20 permissions requested — none are flagged as risky.
Medium
Store local data
Can save data locally in the browser for persistence
Medium
Monitor navigation
Can observe and track tab navigation events and URL changes
Medium
Access user identity
Can get OAuth2 tokens and access your Google account identity
Info
https://*.youtube.com/*
No additional information available.
Info
https://*.tver.jp/*
No additional information available.
Info
https://*.nicovideo.jp/*
No additional information available.
Info
https://*.vimeo.com/*
No additional information available.
Info
https://*.bilibili.com/*
No additional information available.
Are you the author of Advanced Subtitle Effects?
Claim this extension to respond to findings, add context, and earn a verified badge on extenshi.io.
Scan performed by extenshi.io · Jun 25, 2026
Browser extensions made transparent.