SECURITY REPORT · EXTENSHI SCAN
Onion Container
Firefox extension·by neek
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
Onion Container's safety score vs every other extension we've scanned
Globally
31%of extensions carry more risk
Riskier ←→ Safer
Ranked against 369,936 extensions
In Privacy & Security
24%of privacy & security extensions carry more risk
Riskier ←→ Safer
Ranked against 11,537 privacy & security extensions
Findings
15
median 5Lower is safer
Critical findings
1
median 0Severity = Critical
Permissions
12
median 4Declared in manifest
Active users
2
median 3vs category median
Findings breakdown
Automated security signal · 15 distinct issues across 6 severities
15
distinct issues
detected
detected
Critical17%
High533%
Needs Review00%
Medium853%
Low17%
Info00%
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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