I had been using this extension for a while, and it used to work.
But later, I found a similar tool that works faster and increases the chances of a player being found.
It's a web-based tool (works on both mobile and PC), which doesn't require installation or authorization.
If you're interested, you can find this tool on Google by searching "Joinblox".

This is a virus do not download!!

I haven't tried this yet but it's DEF a cookie stealer (for those kids who don't know: it steals ur acc). Stay safe!

idk wbu guys, but for me it found the desired player i wanted to join.. soooooo it's not broken ig

seems to be making suspicious requests

Doesnt work + the reviews in here and in chrome might be botted.

Absolutely flawless extension, It works fantastically and seamlessly. It just works! Does not interfere with my other Firefox add-ons.

Easy 5 stars!