SECURITY REPORT · EXTENSHI SCAN
Lookuber – YouTube Subtitles & Web Dictionary
Firefox extension·by Weiwei
0
/ 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
Lookuber – YouTube Subtitles & Web Dictionary's safety score vs every other extension we've scanned
Globally
16%of extensions carry more risk
Riskier ←→ Safer
Ranked against 369,936 extensions
In Language Support
9%of language support extensions carry more risk
Riskier ←→ Safer
Ranked against 4,113 language support extensions
Findings
102
median 5Lower is safer
Critical findings
1
median 0Severity = Critical
Permissions
5
median 3Declared in manifest
Active users
1
median 3vs category median
Findings breakdown
Automated security signal · 102 distinct issues across 6 severities
102
distinct issues
detected
detected
Critical11%
High22%
Needs Review00%
Medium9088%
Low99%
Info00%
Permissions requested
2 risky permissions of 5 total
1 critical permission require attention
This extension requests 5 permissions in total. 2 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
View open tabs
Can see URLs and titles of all open tabs
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
Info
*://www.youtube.com/*
No additional information available.
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Scan performed by extenshi.io · Aug 17, 2026
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