SECURITY REPORT · EXTENSHI SCAN
Kumo Study
Firefox extension·by Kumo Study
0
/ 100 SAFETY SCORE
RISKY
Several elevated signals. Read the findings before sharing this with your team.
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
Kumo Study's safety score vs every other extension we've scanned
Globally
56.21%of extensions carry more risk
Riskier ←→ Safer
Ranked across every extension we scan
In its category
46.21%of its category extensions carry more risk
Riskier ←→ Safer
Ranked within its category
Findings
92
median 38Lower is safer
Risky permissions
2
median 1Critical + high perms
Total permissions
8
median 4All declared perms
Critical findings
0
median 2Severity = Critical
Findings breakdown
Automated security signal · 92 distinct issues across 6 severities
92
distinct issues
detected
detected
Scanners reported 106 raw occurrences; repeats of the same issue at the same location are merged here. The list below shows every occurrence.
Critical00%
High44%
Needs Review00%
Medium7379%
Low1112%
Info44%
Permissions requested
2 risky permissions of 8 total
1 critical permission require attention
This extension requests 8 permissions in total. 2 of them grant broad capabilities that are worth a careful look.
Critical
Access to all websites(optional)
Can read and modify content on every website you visit
High
Execute scripts in pages
Can inject and execute JavaScript code in web pages
Medium
Access current tab
Can temporarily access the content of the active tab when you click the extension
Medium
Add context menu items
Can add custom items to the right-click context menu
Medium
Store local data
Can save data locally in the browser for persistence
Low
Schedule tasks
Can schedule periodic background tasks
Low
Block network requests (declarative)
Can block or redirect network requests using predefined rules without seeing content
Low
Create offscreen documents
Can create hidden documents for background processing tasks
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Scan performed by extenshi.io · Jul 25, 2026· partial run (some scanners failed)
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