Container Session Proxy от Tsuuko

Container Session Proxy assigns a separate proxy session ID to each Firefox container. Set one proxy URL template with ${session}, and the add-on automatically replaces it with a container-specific value.

Supports HTTP, HTTPS, SOCKS5, and SOCKS5H proxies. Includes options for direct connections outside containers, local address bypass, WebRTC disabling, hash randomization, and IP leak checking.

A compatible proxy service that supports session IDs is required.