Browser Monitor Privacy Policy

Last updated: August 2026

1. Overview

Browser Monitor is a privacy-focused Chrome extension designed to improve browser security, privacy and browsing experience.

The extension provides tools for:

• advertisement and tracker blocking;
• privacy protection;
• security checks;
• cookie banner control;
• custom filtering;
• browser optimization features.

Browser Monitor follows a local-first approach. Most processing happens directly inside the user's browser and personal data is not collected for advertising or user tracking.

2. Data Processing

Website URLs and Domains

Browser Monitor processes website URLs and domains to provide security and privacy features.

This includes:

• blocking unwanted requests;
• detecting suspicious domains;
• checking navigation safety;
• applying filtering rules.

Website information is processed locally and is not used to create advertising profiles.

Browser Tabs

Browser Monitor may access currently opened tabs and their URLs.

This permission is required for:

• browser monitoring;
• security analysis;
• page protection features;
• user interface statistics.

Browsing activity is not sold, shared with advertisers, or used for tracking.

Network Requests

Browser Monitor uses Chrome's Declarative Net Request API and web request features to analyze and block unwanted network activity.

This includes:

• advertisements;
• trackers;
• cryptocurrency mining scripts;
• unwanted resources.

Filtering is performed locally in the browser.

3. Local Storage

Browser Monitor stores settings and local information using Chrome Storage API.

Stored information may include:

• extension preferences;
• enabled protection settings;
• filter configuration;
• local statistics;
• user-created rules.

This data remains on the user's device.

4. Optional Permissions

Some features require additional permissions. These permissions are optional and requested only when the user enables related functionality.

History

If enabled by the user, Browser Monitor can access and remove selected history entries for privacy management features.

Cookies

If enabled by the user, Browser Monitor can access cookies for cookie management and export features.

Browsing Data

If enabled by the user, Browser Monitor can remove selected browser data such as cookies, local storage and cached website data.

Downloads

Used only when the user exports browser data, such as cookies, through an explicit action.

Clipboard Security

The Crypto Guard feature may temporarily process a cryptographic fingerprint of copied cryptocurrency addresses to detect clipboard replacement attacks.

The extension does not store the original copied address.

5. Third-Party Services

SponsorBlock API

Browser Monitor may communicate with SponsorBlock API to retrieve community-provided video segment information.

Only the information required for this feature is requested.

User-Provided Filter Lists

Users may optionally add external HTTPS filter lists.

These lists are downloaded only to provide the filtering functionality chosen by the user.

6. Data Collection and Sharing

Browser Monitor does not:

• sell personal data;
• share browsing history with advertisers;
• create user profiles;
• track users across websites.

Information leaves the device only when:

• the user enables a feature requiring an external service;
• the user manually submits feedback;
• the user adds an external filter source.

7. Security Features

Browser Monitor analyzes website activity only to provide security, privacy and customization features requested by the user.

The extension does not collect:

• passwords;
• payment information;
• personal messages;
• emails;
• private files.

8. User Control

Users can disable features, remove optional permissions or uninstall Browser Monitor at any time through Chrome settings.

9. Changes

This privacy policy may be updated when Browser Monitor functionality changes.

10. Contact

GitHub repository:

https://github.com/Jas952/BrowserMonitor