SECURITY REPORT · EXTENSHI SCAN
Captain!
Firefox extension·by Levi Castillo
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
Captain!'s safety score vs every other extension we've scanned
Globally
18%of extensions carry more risk
Riskier ←→ Safer
Ranked against 369,936 extensions
In Other
5%of other extensions carry more risk
Riskier ←→ Safer
Ranked against 26,888 other extensions
Findings
44
median 3Lower is safer
Critical findings
1
median 0Severity = Critical
Permissions
6
median 3Declared in manifest
Active users
11
median 2vs category median
Findings breakdown
Automated security signal · 44 distinct issues across 6 severities
44
distinct issues
detected
detected
Scanners reported 51 raw occurrences; repeats of the same issue at the same location are merged here. The list below shows every occurrence.
Critical12%
High1227%
Needs Review00%
Medium2557%
Low511%
Info12%
Permissions requested
4 risky permissions of 6 total
4 high-risk permissions require attention
This extension requests 6 permissions in total. 4 of them grant broad capabilities that are worth a careful look.
High
View open tabs
Can see URLs and titles of all open tabs
High
Manage downloads
Can initiate downloads and access your download history
High
Access all HTTP sites
Can read and modify content on all non-encrypted websites
High
Access all HTTPS sites
Can read and modify content on all encrypted websites
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
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Scan performed by extenshi.io · Jul 25, 2026
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