SECURITY REPORT · EXTENSHI SCAN

Subtitle Share

Firefox extension·by Kathleen
71
/ 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

Subtitle Share's safety score vs every other extension we've scanned
Globally
8%of extensions carry more risk
This extension
Riskier ←→ Safer
Ranked against 415,885 extensions
In Other
5%of other extensions carry more risk
This extension
Riskier ←→ Safer
Ranked against 28,831 other extensions
Findings
127
median 6Lower is safer
Critical findings
1
median 0Severity = Critical
Permissions
20
median 3Declared in manifest
Active users
0
median 2vs category median

Findings breakdown

Automated security signal · 127 distinct issues across 6 severities
127
distinct issues
detected
Scanners reported 141 raw occurrences; repeats of the same issue at the same location are merged here. The list below shows every occurrence.

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.

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Scan performed by extenshi.io · Oct 22, 2026
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