SECURITY REPORT · EXTENSHI SCAN
Coursera HD Video Downloader
Firefox extension·by Rahul Gurung
62
/ 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
Coursera HD Video Downloader's safety score vs every other extension we've scanned
Globally
6%of extensions carry more risk
Riskier ←→ Safer
Ranked against 409,539 extensions
In Web Development
3%of web development extensions carry more risk
Riskier ←→ Safer
Ranked against 15,317 web development extensions
Findings
26
median 4Lower is safer
Critical findings
1
median 0Severity = Critical
Permissions
4
median 3Declared in manifest
Active users
66
median 2vs category median
Findings breakdown
Automated security signal · 26 distinct issues across 6 severities
26
distinct issues
detected
detected
Critical14%
High1869%
Needs Review00%
Medium312%
Low14%
Info312%
Permissions requested
1 risky permission of 4 total
1 high-risk permission require attention
This extension requests 4 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
Monitor navigation
Can observe and track tab navigation events and URL changes
Medium
Access current tab
Can temporarily access the content of the active tab when you click the extension
Info
https://www.coursera.org/*
No additional information available.
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Scan performed by extenshi.io · Aug 3, 2026
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