SECURITY REPORT · EXTENSHI SCAN
Ostendo – YouTube Screenshots
Firefox extension·by Kabir
0
/ 100 SAFETY SCORE
EXCELLENT
Looks clean. No meaningful risks detected in this scan.
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
Ostendo – YouTube Screenshots's safety score vs every other extension we've scanned
Globally
93.2%of extensions carry more risk
Riskier ←→ Safer
Ranked across every extension we scan
In its category
83.2%of its category extensions carry more risk
Riskier ←→ Safer
Ranked within its category
Findings
5
median 38Lower is safer
Risky permissions
1
median 1Critical + high perms
Total permissions
6
median 4All declared perms
Critical findings
0
median 2Severity = Critical
Findings breakdown
Automated security signal · 5 distinct issues across 6 severities
5
distinct issues
detected
detected
Critical00%
High00%
Needs Review00%
Medium480%
Low00%
Info120%
Permissions requested
1 risky permission of 6 total
1 high-risk permission require attention
This extension requests 6 permissions in total. 1 of them grant broad capabilities that are worth a careful look.
High
View open tabs
Can see URLs and titles of all open tabs
Medium
Store local data
Can save data locally in the browser for persistence
Info
https://img.youtube.com/
No additional information available.
Info
https://yt3.ggpht.com/*
No additional information available.
Info
https://ostendo.app/*
No additional information available.
Info
https://*.youtube.com/*
No additional information available.
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Scan performed by extenshi.io · Jul 25, 2026· partial run (some scanners failed)
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