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18 indicators in this extension

18 indicators
0 versions analysed

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What our analysis found

Youtube Download, used by 1,656 people, is not yet reviewed by Extension Auditor. Its permissions mean it can read and change data on all websites, can inject scripts into pages and can observe network requests. It comes from a publisher with 7 extensions and was last updated in July 2026.

Youtube Download

Youtube Download Firefox extension security report

ID: youtube-save-video

Extension Info & Metadata

Status
Active
Version
1.0.1
Size
1.72 MB
Rating
4.7/5
Reviews
14
Users
1,656
Type
Extension
Updated
Jul 27, 2026
Category
N/A
Price
Free
Featured
No
Visibility
Listed
Mature
No
By Google
No
Trusted
No
Download CRX
Firefox Add-ons
Report Issue
This publisherTrack record
7extensions
All still listed

Publisher Contextual Analysis

Author
Youtube Download
Extensions
7
Active
3
Obsolete
0
Listed
7
Unlisted
0
Users
31,990

Screenshots & videos

Screenshot 1
Screenshot 2
Screenshot 3

Install growth

Item
Type
Severity
Description
webRequest
Permission
Critical
This permission enables the extension to monitor and analyze all web requests made by the browser. Rated Critical because it can observe all network traffic including sensitive data, track browsing behavior, and gather authentication tokens.
declarativeNetRequestWithHostAccess
Permission
Critical
This permission combines network request modification with host permissions. Rated Critical because it can modify requests for specific domains, potentially targeting sensitive websites with precise attack rules.
scripting
Permission
Critical
This permission allows injection and execution of JavaScript on any webpage. Rated Critical because it can modify page content, steal sensitive data, and inject malicious code into any site the extension has access to.
declarativeNetRequest
Permission
Critical
This permission allows the extension to define rules to block, redirect, or modify network requests. Rated Critical because it can control all network traffic, potentially blocking security updates or redirecting to malicious sites.
<all_urls>
Host
Critical
Broad host access — the extension can read/modify content on every website.
Dangerous Permission Combination: scripting,<all_urls>,webRequest
Risk Factor
Critical
Enables sophisticated data theft through script injection and traffic monitoring
downloads
Permission
High
This permission controls file downloads and accesses download history. Rated High because it can download malicious files, access sensitive downloaded documents, and track user download patterns.
Contextual Risk Factors
Risk Factor
High
The following context increases the overall risk:• 10% increase: Early script execution enables pre-emptive content manipulation• 25% increase: Unsafe code evaluation capabilities increase attack surface
Broad Host Permissions
Risk Factor
High
This extension has broad host permissions allowing it to access many or all websites.
Broad Content Script Access
Risk Factor
High
This extension can inject scripts into any website.
Unsafe WebAssembly Execution
Risk Factor
High
This extension's CSP allows "wasm-unsafe-eval".
storage
Permission
Medium
This permission allows storing data locally in the browser. Rated Medium because it can persist sensitive user data, track user activities over time, and potentially store malicious payloads.
activeTab
Permission
Medium
This permission grants temporary access to the current tab. Rated Medium because it can access current page content when invoked, though limited to user-initiated actions.
Early Content Script Execution
Risk Factor
Medium
This extension runs content scripts at document_start.

18 indicators in this extension

18 indicators
0 versions analysed

Every finding is verified by a security analyst. Unlock the code evidence, indicators and version history.

Unlock this report — $4.99Start 7-day trial — all reports
One-time payment · Secure checkout by Stripe

About this extension

Download YouTube videos and MP3 audio in one click. Save Full HD video or high-quality audio fast with simple on-page controls for offline watching.

Read the publisher’s full description

Save YouTube clips for offline viewing with one click. Choose Full HD video or MP3 audio, then start the download from the page controls. <ul><li>One-click video and audio saves</li><li>Full HD and MP3 quality options</li><li>Works while you browse YouTube</li><li>Progress feedback during downloads</li><li>Lightweight popup for quick access</li></ul> Keep favorite videos on your device without leaving the watch page. Install once and download anytime you need a local copy.

User reviews

Extension files

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URLs
18

URLs

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No URLs found
No IP addresses found

18 indicators in this extension

18 indicators
0 versions analysed

Every finding is verified by a security analyst. Unlock the code evidence, indicators and version history.

Unlock this report — $4.99Start 7-day trial — all reports
One-time payment · Secure checkout by Stripe
Version
Size
Verdict
Findings
Permhash
1.0.1
Latest
1.72 MBNot scanned—
5cd3097a6d21aa7680883c246b2f10f2471a009a7e1ea2bd4df46972273b009b
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