Any free multi account browser on Windows 11 for anti detection?

I work in website testing, and best multi-account browser setups are not always about using several complete browsers. FoxyProxy is useful when different accounts or testing tasks need separate proxy routes, public IP addresses, or geographic locations.

Proxy Setup Method

1️⃣Add the proxy servers you want to use.

2️⃣Give each proxy a clear name based on its location or purpose.

3️⃣Create rules for the websites or traffic that should use a specific proxy.

4️⃣Select the required proxy profile before opening the related account.

5️⃣Keep the browser profile or container separate as well if the accounts use different cookies and login sessions.

The special feature here is network routing. Unlike normal browsers, which usually send all profiles through the same connection, this method lets you change the route without switching the entire Windows network configuration.

It does not isolate passwords, cookies, history, or browser fingerprints. For that reason, best multi-account browser is most accurate when the main requirement is proxy-based separation rather than complete account isolation.