extenshi.io
SECURITY REPORT · EXTENSHI SCAN

Onion Container

Firefox extension·by neek
77
/ 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

Onion Container's safety score vs every other extension we've scanned
Globally
31%of extensions carry more risk
This extension
Riskier ←→ Safer
Ranked against 397,380 extensions
In Privacy & Security
25%of privacy & security extensions carry more risk
This extension
Riskier ←→ Safer
Ranked against 12,476 privacy & security extensions
Findings
15
median 5Lower is safer
Critical findings
1
median 0Severity = Critical
Permissions
12
median 4Declared in manifest
Active users
4
median 3vs category median

Findings breakdown

Automated security signal · 15 distinct issues across 6 severities
15
distinct issues
detected

Permissions requested

7 risky permissions of 12 total
1 critical permission require attention
This extension requests 12 permissions in total. 7 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
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
Control proxy settings

Can route your browser traffic through a proxy server

High
Delete browsing data

Can remove browsing history, cookies, cache, and other browsing data

High
Observe web requests

Can monitor all network requests made by the browser

Medium
Add context menu items

Can add custom items to the right-click context menu

Medium
Container tabs

Can manage Firefox container tabs and their identities

Medium
Store local data

Can save data locally in the browser for persistence

Medium
Show notifications

Can display desktop notifications outside the browser

Low
Schedule tasks

Can schedule periodic background tasks

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Scan performed by extenshi.io · Aug 21, 2026
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