extenshi.io
SECURITY REPORT · EXTENSHI SCAN

YouTube Video Downloader

Firefox extension·by Natasa Rehman
72
/ 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

YouTube Video Downloader's safety score vs every other extension we've scanned
Globally
18%of extensions carry more risk
This extension
Riskier ←→ Safer
Ranked against 402,594 extensions
In Social & Communication
8%of social & communication extensions carry more risk
This extension
Riskier ←→ Safer
Ranked against 13,641 social & communication extensions
Findings
23
median 5Lower is safer
Critical findings
5
median 0Severity = Critical
Permissions
8
median 3Declared in manifest
Active users
7836
median 3vs category median

Findings breakdown

Automated security signal · 23 distinct issues across 6 severities
23
distinct issues
detected
Scanners reported 44 raw occurrences; repeats of the same issue at the same location are merged here. The list below shows every occurrence.

Permissions requested

5 risky permissions of 8 total
5 high-risk permissions require attention
This extension requests 8 permissions in total. 5 of them grant broad capabilities that are worth a careful look.
High
Manage downloads

Can initiate downloads and access your download history

High
View open tabs

Can see URLs and titles of all open tabs

High
Execute scripts in pages

Can inject and execute JavaScript code in web pages

High
Access all HTTPS sites

Can read and modify content on all encrypted websites

High
Access all HTTP sites

Can read and modify content on all non-encrypted websites

Medium
Store local data

Can save data locally in the browser for persistence

Medium
Access current tab

Can temporarily access the content of the active tab when you click the extension

Low
Schedule tasks

Can schedule periodic background tasks

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Scan performed by extenshi.io · Aug 25, 2026
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