BitBrowser's Add dialog starts with the Proxy block. Set Method to Custom, pick the Type, type the gateway host and port into Host and Port, then the username and password. Check Proxy on the right confirms the exit IP; Confirm saves the profile.
Browser Profiles → Add → Proxy → Method: Custom
Open BitBrowser, choose Browser Profiles in the left menu and click Add in the top-left corner. The Add dialog opens with the Proxy section at the top.

Set Method to Custom and Type to HTTP (HTTP port) or SOCKS5 (SOCKS5 port); keep Protocol on IPv4 unless you use the IPv6 plan. Type the gateway host in Host, the port in Port, then Username and Password. Refresh Proxy stays empty.

Click Check Proxy at the top right of the Proxy section. BitBrowser shows the exit IP with country, region, city and time zone. Finish the profile and click Confirm.

Check Proxy, top right of the Proxy section. The result lists the exit IP, country, city and time zone.
Open the profile from Browser Profiles. Its Proxy IP column shows the exit the check found.
Copy the line from the dashboard (Proxies, your plan, the proxy generator) rather than typing it: it already carries the country, the session id and the session length in the username. The table shows what each field holds.
| Plan | Host | HTTP port | SOCKS5 port | Username shape |
|---|---|---|---|---|
| Residential Premium | residentialpremium.quantumproxies.io | 8080 | 1080 | USER-country-us-sid-k3f9a1b2-ttl-60m |
| Residential Basic | residentialboson.quantumproxies.io | 9000 | from the generator | USER-country-us |
| Mobile | mobile-us.quantumproxies.io (also -eu, -as, ww) | 8080 | 1080 | USER-country-us-type-mobile |
| Datacenter (per GB) | datacenterboson.quantumproxies.io | 9999 | 10000 | USER-type-datacenter-country-de |
| IPv6 | ipv6.quantumproxies.io | 1001 | from the generator | USER-country-us-package-ipv6 |
| ISP (dedicated IP) | the IP of your line | 8000 | on the plan page | the line's own login |
The password is the one the generator prints next to the username. Pick HTTP or SOCKS5 in the tool and use the port of that column; a port from the other column is the most common reason a check fails. USER and the session id are placeholders for your own values.
HTTP with the HTTP port of your plan, SOCKS5 with the SOCKS5 port. BitBrowser also lists HTTPS and SSH: do not use them for our gateways.
Not in the Add dialog: Host, Port, Username and Password are separate fields. The Proxy IP page can import lines in bulk if you manage many profiles.
No. A sticky username with country, session id and ttl is about 40 characters; the limits apply to each field separately.
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