it is possible to raise local 3proxy configuration
auth iponly
fakeresolve
internal 127.0.0.1
allow *
parent 1000 socks5+ adressons PORTDOCS login password
proxy-p3128
and put proxy (for all protocols) 127.0.0.1 port 3128, the browser will access a local proxy, and local proxy to go in socks with authorization.
Or, if proxies its better to raise an http proxy instead of or in addition to socks, the authorization for it is supported in browsers.
