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No code review on record

We have not reviewed this extension’s code, so we cannot vouch for it either way. Check the permissions below to decide whether it asks for more than it needs.

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What our analysis found

MetaMask Wallet is not yet reviewed by Extension Auditor. Its permissions mean it can read and change data on all websites. It comes from a publisher with 58 extensions and was last updated in August 2025.

MetaMask Wallet Firefox extension security report

ID: metamask_browser

Extension Info & Metadata

Status
Active
Version
1888.0
Size
0.02 MB
Rating
3.4/5
Reviews
4,921
Users
20
Type
Extension
Updated
Aug 1, 2025
Category
N/A
Price
Free
Featured
No
Visibility
Listed
Mature
No
By Google
No
Trusted
No
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This publisherTrack record
58extensions
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Publisher Contextual Analysis

Author
MetaMask
Privacy
Privacy Policy
Website
Visit
Extensions
58
Active
32
Obsolete
0
Listed
58
Unlisted
0
Users
3,470,403

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Install growth

Item
Type
Severity
Description
<all_urls>
Risk Factor
Critical
This permission grants access to all websites without restriction. Rated High because it can access any web content, monitor all web activity, and potentially steal sensitive data across all sites.
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
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.
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

About this extension

MetaMask is the world’s most secure and flexible crypto wallet, trusted by millions of users to buy, sell, and swap digital assets. Manage your portfolio, interact with dapps, and jump into the decentralized web.

User reviews

Extension files

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No network indicators were extracted from this version.

Version
Size
Verdict
Findings
Permhash
1888.0
Latest
0.02 MBNot scanned—N/A
160.2.52
0.57 MBNot scanned—
bdab768a35642573d923e2c8b9a0676b5f80c8aed184858bf32a21474faeb272
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Code Diff

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