Volume Master

What This Extension Does

The Volume Master extension claims to provide an up to 600% volume boost, which suggests it modifies the user's system settings or interacts with media playback in some way.

Permissions Explained

• activeTab: Allows the extension to access and modify the currently active tab.
• offscreen: This permission is not explicitly used by most extensions; its purpose is unclear without further context. It may be related to rendering content off-screen for accessibility or other purposes.
• tabCapture: A high-risk permission that allows the extension to capture screenshots of web pages, which could potentially be used for malicious activities like phishing or surveillance.
• tabs: Allows the extension to access and modify multiple tabs, including their contents.
• storage: Enables the extension to store data locally on the user's device.

What We Found in the Code

• [medium] innerHTML assignment — potential XSS vector: This flag is likely a normal coding pattern for UI rendering. Extensions often use innerHTML to dynamically update content within their own UI elements, which can include HTML strings. However, if these strings are not properly sanitized and come from untrusted sources (e.g., user input), they could potentially introduce cross-site scripting (XSS) vulnerabilities.
• [high] Listens to keyboard events: This is a common pattern for extensions that want to provide shortcuts or hotkeys within their own UI. It's likely legitimate in this context, assuming the extension only listens for keyboard events within its own UI elements.

External Connections

The extension communicates with:

• www.petasittek.com: The purpose of this connection is unclear without further information about Petasittek and its relationship to the Volume Master extension.
• microsoftedge.microsoft.com: This domain suggests a possible integration or compatibility feature with Microsoft Edge, which could be related to the extension's functionality.

Things to Consider

Given the extension's claim to boost volume by up to 600%, it seems unusual that it requires access to multiple tabs and storage. These permissions suggest broader capabilities than what is typically expected for an accessibility-focused volume booster. The connection to Petasittek.com, without further context, raises questions about data sharing or integration with external services. Users should consider whether these features are necessary for the extension's claimed functionality and weigh them against potential privacy implications.