The proxy gateway functions as a type of service connecting an end user and target websites.
Whenever a user connects using a proxy, their traffic are sent to the proxy first, and after that the proxy sends your data toward the intended website for you.
<a href="https://webvpn.org/vpn/category/firefox">Firefox hub</a>
Using a proxy helps to obscure the user's location, get around regional blocks, and increase privacy.
That said, many proxy servers can be unsafe, so it's important select a credible service.