SECURITY REPORT · EXTENSHI SCAN
OntoClick
Firefox extension·by Zankl Lab
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
OntoClick's safety score vs every other extension we've scanned
Globally
4%of extensions carry more risk
Riskier ←→ Safer
Ranked against 369,936 extensions
In Search Tools
1%of search tools extensions carry more risk
Riskier ←→ Safer
Ranked against 15,409 search tools extensions
Findings
97
median 4Lower is safer
Critical findings
1
median 0Severity = Critical
Permissions
3
median 3Declared in manifest
Active users
2
median 2vs category median
Findings breakdown
Automated security signal · 97 distinct issues across 6 severities
97
distinct issues
detected
detected
Critical11%
High1718%
Needs Review00%
Medium6466%
Low99%
Info66%
Permissions requested
3 permissions declared
No risky permissions
3 permissions requested — none are flagged as risky.
Medium
Add context menu items
Can add custom items to the right-click context menu
Medium
Write to clipboard
Can place content onto your clipboard
Medium
Access current tab
Can temporarily access the content of the active tab when you click the extension
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Scan performed by extenshi.io · Aug 21, 2026
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