extenshi.io
SECURITY REPORT · EXTENSHI SCAN

Containers New Tab

Firefox extension·by shotor
78
/ 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

Containers New Tab's safety score vs every other extension we've scanned
Globally
32%of extensions carry more risk
This extension
Riskier ←→ Safer
Ranked against 403,277 extensions
In Tabs
14%of tabs extensions carry more risk
This extension
Riskier ←→ Safer
Ranked against 12,598 tabs extensions
Findings
13
median 4Lower is safer
Critical findings
1
median 0Severity = Critical
Permissions
8
median 3Declared in manifest
Active users
1
median 2vs category median

Findings breakdown

Automated security signal · 13 distinct issues across 6 severities
13
distinct issues
detected
Scanners reported 14 raw occurrences; repeats of the same issue at the same location are merged here. The list below shows every occurrence.

Permissions requested

6 risky permissions of 8 total
6 high-risk permissions require attention
This extension requests 8 permissions in total. 6 of them grant broad capabilities that are worth a careful look.
High
Access browser cookies

Can read and modify cookies, potentially accessing login sessions

High
View open tabs

Can see URLs and titles of all open tabs

High
View most visited sites

Can see your most frequently visited websites

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

Medium
Container tabs

Can manage Firefox container tabs and their identities

Medium
Store local data

Can save data locally in the browser for persistence

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Scan performed by extenshi.io · Aug 16, 2026
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