Privacy Policy for Proxy Tab

This Privacy Policy describes how the "Proxy Tab" Chromium browser extension ("we", "our", or "the extension") handles user information and data.

1. NO DATA COLLECTION OR TRANSMISSION

Proxy Tab is built with privacy-first principles. We do NOT collect, transmit, store on external servers, or sell any personal or browsing information. Specifically:

• We do NOT collect personally identifiable information (such as names, emails, IP addresses, or location data).

• We do NOT monitor, track, or record your browsing history, visited URLs, web page content, or search queries.

• We do NOT use any third-party tracking, analytics, telemetry SDKs, or advertising networks.

• We do NOT run any remote backend servers that collect user telemetry.

2. STRICT LOCAL DATA STORAGE

All configuration data and preferences are stored exclusively on your local computer using the browser's native "chrome.storage.local" API:

• User-configured proxy connection details (protocol, host, port).

• Domain-specific routing rules (rules specifying which sites open directly or via proxy).

• Per-tab routing states for your current browser session.

• User interface language preference (RU / EN).

This data never leaves your device. If you uninstall the extension, all locally stored data is automatically and permanently erased by the Chromium browser.

3. PERMISSIONS AND PURPOSE

Proxy Tab requests only the permissions strictly required to provide per-tab proxy network routing:

• "proxy": Enables dynamic configuration of Chromium's proxy settings to route user-selected tabs through SOCKS5, HTTP, or HTTPS proxies while allowing other tabs to connect directly.

• "storage": Allows saving user preferences, proxy configurations, and domain rules locally on your device.

• "tabs" & "activeTab": Used solely to identify the active tab's domain and URL in order to display current status in the popup and apply the selected routing mode.

• "alarms": Schedules periodic checks of local proxy socket availability and cleans up memory references for closed tabs.

• "webRequest": Detects network connection errors (net::ERR_PROXY_CONNECTION_FAILED) to enforce strict Fail-Closed security, preventing silent fallback to your direct IP if the proxy drops.

• "declarativeNetRequest": Enables instant declarative connection resets and socket isolation between proxy and direct tabs.

• Host Permissions ("<all_urls>"): Required to match domain rules and route traffic across any website the user chooses to configure.

4. THIRD-PARTY PROXY SERVERS

Proxy Tab is a client-side routing tool. It only connects to the proxy server explicitly specified by the user in the extension settings (e.g., local client at 127.0.0.1:10808, or a private VPS). Proxy Tab does not operate, manage, or route your traffic through any proprietary proxy servers.

5. FAIL-CLOSED ZERO-LEAK GUARANTEE

Proxy Tab uses a deterministic Fail-Closed routing architecture. In the event of a proxy outage, the extension immediately halts the connection for the proxy tab rather than silently falling back to a direct connection, ensuring your real IP address is never accidentally leaked.

6. CONTACT AND SUPPORT

If you have any questions or feedback regarding this extension, please reach out via the official Chrome Web Store "Support" tab on the product listing page.