Can You Run a Tor Snowflake Proxy From Your Browser?

Yes, virtually anyone with an internet connection and a modern web browser can run a Tor Snowflake proxy. Snowflake is an anti-censorship system developed by the Tor Project that turns ordinary web browsers into temporary proxies. By running a Snowflake proxy, volunteers help people in countries with heavy internet censorship access the free and open web without exposing themselves to the legal or technical risks associated with running standard Tor exit relays.

How Snowflake Works

Snowflake relies on WebRTC (Web Real-Time Communication), a standard technology built into modern web browsers to support peer-to-peer connections. When someone in a censored region needs to access the Tor network, the Snowflake system dynamically connects them to a volunteer’s browser acting as a temporary bridge. The user’s encrypted traffic passes through the volunteer proxy into the Tor network, making the traffic appear to censors as a standard peer-to-peer video or voice call rather than Tor activity.

Requirements to Run a Browser Proxy

The requirements to run a Snowflake proxy are minimal:

• A Modern Browser: Any browser that supports WebRTC, such as Google Chrome, Mozilla Firefox, Microsoft Edge, Brave, or Safari.
• An Unrestricted Connection: A standard home, work, or university internet connection where WebRTC is not blocked.
• Open Tabs or Background Extensions: The proxy only functions while the browser tab is open or the extension is active.

Ways to Run Snowflake in a Browser

There are two primary methods to run a Snowflake proxy from your browser:

1. Browser Extension: You can install the official Snowflake extension for Firefox or Chrome-based browsers. Once installed, it runs quietly in the background whenever your browser is open. You can toggle it on or off with a single click.
2. Web Page Embed: You can run a proxy directly from a web page by visiting a site with an embedded Snowflake toggle and switching it on. As long as you leave the browser tab open, your computer will act as a bridge for censored users.

Safety, Privacy, and Bandwidth

Running a Snowflake browser proxy is safe for standard users:

• Safety: You are not an exit node. You only pass encrypted traffic into the Tor entry network; you do not connect directly to the websites the censored user visits. Your IP address is not associated with the user’s browsing activity.
• Performance: Snowflake consumes very little processing power and bandwidth. It handles small, lightweight data streams and automatically ceases operation when you close the tab or browser.