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12 indicators in this extension

12 indicators
0 versions analysed

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What our analysis found

Music Score Downloader, used by 9,376 people, is not yet reviewed by Extension Auditor. Its permissions mean it can observe network requests and allows unsafe code evaluation. It comes from a trusted publisher and was last updated in May 2026.

Music Score Downloader

Music Score Downloader Firefox extension security report

ID: music-score-downloader

Extension Info & Metadata

Status
Active
Version
0.5.18
Size
1.60 MB
Rating
5.0/5
Reviews
41
Users
9,376
Type
Extension
Updated
May 5, 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
4extensions
All still listed

Publisher Contextual Analysis

Trusted
Author
inguin
Privacy
Privacy Policy
MX records exist
Yes
Domain exists
Yes
Is disposable
No
Is role-based
No
Mailbox exists
Yes
Website
Visit
Extensions
4
Active
2
Obsolete
0
Listed
4
Unlisted
0
Users
20,425

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Screenshots & videos

Screenshot 1

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.
Contextual Risk Factors
Risk Factor
High
The following context increases the overall risk:• 10% increase: Early script execution enables pre-emptive content manipulation• 15% increase: Older manifest version lacks modern security controls• 25% increase: Unsafe code evaluation capabilities increase attack surface
Unsafe JavaScript Evaluation
Risk Factor
High
This extension's CSP allows "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.
https://*.musescore.com/*
Host
Medium
Host permission — access limited to this URL pattern.
https://s3.ultimate-guitar.com/musescore.scoredata/g/*
Host
Medium
Host permission — access limited to this URL pattern.
https://cdn.ustatik.com/*
Host
Medium
Host permission — access limited to this URL pattern.
https://*.wasabisys.com/*
Host
Medium
Host permission — access limited to this URL pattern.
Early Content Script Execution
Risk Factor
Medium
This extension runs content scripts at document_start.
Older Manifest Version
Risk Factor
Medium
This extension uses Manifest Version 2

12 indicators in this extension

12 indicators
0 versions analysed

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

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About this extension

Extension allowing you to download music sheets, audio and midi files for free

User reviews

Extension files

Browse and explore files within this extension package

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URLs
12

URLs

View the external URLs this extension communicates with to understand its network activity and data interactions.

No URLs found
No IP addresses found

12 indicators in this extension

12 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
0.5.0
Latest
0.79 MBNot scanned—
b24fcfd8970fc20233a34145ad514a54e6c01adf3fcb71445b8386549a7e3bd7
0.5.1
0.79 MBNot scanned—
b24fcfd8970fc20233a34145ad514a54e6c01adf3fcb71445b8386549a7e3bd7
0.5.2
0.79 MBNot scanned—
ece1b1aa8f9f366b676c3cb495bc6524698d768ade50a4536fc56c136aa9b226
0.5.3
0.80 MBNot scanned—
ece1b1aa8f9f366b676c3cb495bc6524698d768ade50a4536fc56c136aa9b226
0.5.4
0.80 MBNot scanned—
ece1b1aa8f9f366b676c3cb495bc6524698d768ade50a4536fc56c136aa9b226
0.5.5
0.80 MBNot scanned—
ece1b1aa8f9f366b676c3cb495bc6524698d768ade50a4536fc56c136aa9b226
0.5.6
0.80 MBNot scanned—
ece1b1aa8f9f366b676c3cb495bc6524698d768ade50a4536fc56c136aa9b226
0.5.7
1.11 MBNot scanned—
b24fcfd8970fc20233a34145ad514a54e6c01adf3fcb71445b8386549a7e3bd7
0.5.8
1.11 MBNot scanned—
a897a5af636d5b7e234f6502a1a8315e2e9505cd3e8d66972c8be6206077be71
0.5.9
1.11 MBNot scanned—
a897a5af636d5b7e234f6502a1a8315e2e9505cd3e8d66972c8be6206077be71
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