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SECURITY REPORT · EXTENSHI SCAN

Container Tab Prefix

Firefox extension·by MasterKyanite
79
/ 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

Container Tab Prefix's safety score vs every other extension we've scanned
Globally
35%of extensions carry more risk
This extension
Riskier ←→ Safer
Ranked against 402,636 extensions
In Privacy & Security
28%of privacy & security extensions carry more risk
This extension
Riskier ←→ Safer
Ranked against 12,500 privacy & security extensions
Findings
7
median 5Lower is safer
Critical findings
1
median 0Severity = Critical
Permissions
4
median 4Declared in manifest
Active users
3
median 3vs category median

Findings breakdown

Automated security signal · 7 distinct issues across 6 severities
7
distinct issues
detected

Permissions requested

3 risky permissions of 4 total
1 critical permission require attention
This extension requests 4 permissions in total. 3 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

High
Access browser cookies

Can read and modify cookies, potentially accessing login sessions

Medium
Container tabs

Can manage Firefox container tabs and their identities

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Scan performed by extenshi.io · Aug 1, 2026
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