extenshi.io
SECURITY REPORT · EXTENSHI SCAN

Web Video Downloader

Firefox extension·by Peter Pan
65
/ 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

Web Video Downloader's safety score vs every other extension we've scanned
Globally
9%of extensions carry more risk
This extension
Riskier ←→ Safer
Ranked against 402,581 extensions
In Photos Music Videos
3%of photos music videos extensions carry more risk
This extension
Riskier ←→ Safer
Ranked against 11,114 photos music videos extensions
Findings
33
median 4Lower is safer
Critical findings
2
median 0Severity = Critical
Permissions
10
median 3Declared in manifest
Active users
19
median 6vs category median

Findings breakdown

Automated security signal · 33 distinct issues across 6 severities
33
distinct issues
detected
Scanners reported 39 raw occurrences; repeats of the same issue at the same location are merged here. The list below shows every occurrence.

Permissions requested

6 risky permissions of 10 total
1 critical permission require attention
This extension requests 10 permissions in total. 6 of them grant broad capabilities that are worth a careful look.
Critical
Access to all websites

Can read and modify content on every website you visit

High
Observe web requests

Can monitor all network requests made by the browser

High
Block and modify web requests

Can intercept, block, or modify any network request before it completes

High
Access browser cookies

Can read and modify cookies, potentially accessing login sessions

High
Manage downloads

Can initiate downloads and access your download history

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

Medium
Access current tab

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

Medium
Write to clipboard

Can place content onto your clipboard

Low
Block network requests (declarative)

Can block or redirect network requests using predefined rules without seeing content

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Scan performed by extenshi.io · Sep 20, 2026
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