If you are using a mobile hotspot, VPN, V2, or SSR, there is no need to set a proxy IP in the browser. In this case, only one browser can be opened at a time. Opening multiple browsers simultaneously is not supported, as it may cause the IP and network to be linked.

Steps:

1. Open Browser A, use it, and close it after you're done.

2. Switch to a new connection.

3. Open Browser B, use it, and close it after you're done.

4. Repeat as needed.