SECURITY REPORT · EXTENSHI SCAN
Onion Control (anonymous proxy)
Firefox extension·by Andy Portmen
0
/ 100 SAFETY SCORE
DANGEROUS
Meaningful risk surface. Avoid on managed devices without review.
Likely abandonedsafety score reduced by 30 points
- No update in over 5 years
Why this matters
An unmaintained extension keeps whatever flaws it shipped with, and a listing with users but no owner is an attractive target to buy and repurpose.
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 Control (anonymous proxy)'s safety score vs every other extension we've scanned
Globally
13%of extensions carry more risk
Riskier ←→ Safer
Ranked against 369,936 extensions
In Privacy & Security
9%of privacy & security extensions carry more risk
Riskier ←→ Safer
Ranked against 11,537 privacy & security extensions
Findings
14
median 5Lower is safer
Critical findings
1
median 0Severity = Critical
Permissions
5
median 4Declared in manifest
Active users
354
median 3vs category median
Findings breakdown
Automated security signal · 14 distinct issues across 6 severities
14
distinct issues
detected
detected
Critical17%
High643%
Needs Review00%
Medium643%
Low17%
Info00%
Permissions requested
3 risky permissions of 5 total
1 critical permission require attention
This extension requests 5 permissions in total. 3 of them grant broad capabilities that are worth a careful look.
Critical
Communicate with desktop apps
Can exchange messages with applications installed on your computer
High
Control proxy settings
Can route your browser traffic through a proxy server
High
Control privacy settings
Can modify browser privacy settings like Do Not Track and safe browsing
Medium
Store local data
Can save data locally in the browser for persistence
Medium
Show notifications
Can display desktop notifications outside the browser
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Scan performed by extenshi.io · Aug 24, 2026
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