Is File System Access safe to use?

File System Access has a security risk score of 0/100 (MINIMAL risk). Our security analysis detected 0 findings. Review the detailed security assessment below to understand the specific risks before installation.

What are the security risks of File System Access?

Based on our automated security analysis, File System Access presents minimal risk level. The extension is analyzed for malware patterns, secret exposure, network communications, permissions, and supply chain vulnerabilities.

How is the security score calculated?

Risky Plugins calculates security scores using weighted categories: severity of findings (25 points max), malware detections (35 points), secret exposure (28 points), network communications (10 points), and obfuscation (10 points). Scores range from 0-100, with higher scores indicating greater risk.

What does CRITICAL, HIGH, MEDIUM, LOW, MINIMAL risk mean?

CRITICAL (80-100): Severe security issues like malware. HIGH (60-79): Significant vulnerabilities. MEDIUM (40-59): Moderate security concerns. LOW (20-39): Minor issues. MINIMAL (0-19): Very low risk. Always review findings before installing any extension.

Is "File System Access" on Firefox Add-ons Safe to Install?

Name: File System Access
Availability: InStock
Rating: 3.3333 (3 reviews)
Author: sycxyc

sycxyc · firefox · v0.9.4

Risk Assessment

Pending

out of 100

MINIMAL

0 security findings detected across all analyzers

Firefox extension requesting 4 permissions

No Threats Detected

This extension passed all security checks

About This Extension

This extension brings the File System Access API to Firefox that helps web apps such as https://vscode.dev read and write local files and folders. Main features: * Implemented showOpenFilePicker, showDirectoryPicker, showSaveFilePicker functions and related interfaces. * Set to enable specific File System Access features on matching web pages. * Provides File System Access API for other compatible WebExtensions. Notes: * <b>The local file operations required by this extension cannot be performed in the browser, and a <a href="https://prod.outgoing.prod.webservices.mozgcp.net/v1/8c0e93e7ff25738aeeb97c29cbedb7b094d52c7950959184f2abdcf15c741f32/https%3A//github.com/ichaoX/ext-file/releases" rel="nofollow">helper app</a> needs to be installed to assist in the related work.</b> * The optional Code Editor feature is provided by the <a href="https://addons.mozilla.org/firefox/addon/code-editor/" rel="nofollow">Code Editor</a> extension. Limitations: * By default, <code>FileSystemHandle</code> will lose its instance methods after cloning (e.g. using <code>IndexedDB</code> or <code>postMessage</code>), and requires additional configuration of the <code>FS_CONFIG.CLONE_ENABLED</code>. Web developers can use <code>__FILE_SYSTEM_TOOLS__.parseHandle(handle)</code> to restore the instance methods. * Limited Worker context support and requires additional configuration of the <code>FS_CONFIG.WORKER_ENABLED</code>. * Read file size is limited by the <code>FS_CONFIG.FILE_SIZE_LIMIT</code>. Web developers can read large file streams and slices with <code>handle.getFile({ _allowNonNative: true })</code>, and write large file in-place with <code>handle.createWritable({ _inPlace: true, keepExistingData: true })</code>. * <code>DataTransferItem.prototype.getAsFileSystemHandle</code> is not implemented. This extension is open source and you can file bug reports or feature requests on the <a href="https://prod.outgoing.prod.webservices.mozgcp.net/v1/e34336bdabb44d27d3a561579149cafa24e24cf09039fb792cc98787af6a4a52/https%3A//github.com/ichaoX/ext-file/issues" rel="nofollow">GitHub issue</a>. References: * <a href="https://prod.outgoing.prod.webservices.mozgcp.net/v1/7d8a382ffb9084931279c4b98be0561b9aaec8f257aba5a5ca4c7c0ec6a47f6b/https%3A//wicg.github.io/file-system-access/" rel="nofollow">https://wicg.github.io/file-system-access/</a>

No Findings

All security checks passed

Security Analysis Summary

Security Analysis Overview

File System Access is a Firefox Add-ons extension published by sycxyc. Version 0.9.4 has been analyzed by the Risky Plugins security platform, receiving a risk score of 0/100 (MINIMAL risk) based on 0 security findings.

Risk Assessment

This extension presents minimal security concerns. The automated analysis found very few or no issues, suggesting it is suitable for general use.

What Was Analyzed

The security assessment covers multiple analysis categories:

Malware Detection: YARA rule matching against 2,400+ malware signatures
Secret Detection: Scanning for exposed API keys, tokens, and credentials
Static Analysis: Code-level security analysis for common vulnerability patterns
Network Analysis: Detection of suspicious network communications and endpoints
Obfuscation Detection: Identification of code obfuscation techniques

Developer Information

File System Access is published by sycxyc on the Firefox Add-ons marketplace. The extension has approximately 99 users.

Recommendation

Based on the automated security analysis, this extension appears safe for general use. As with any extension, users should review the requested permissions before installation.

Source Code Viewer

Source Code Not Available

Source code is not available for this version of the extension.