This question already has an answer here:
I am trying to download a file using the bittorrent protocol but I can't get my browser to open the magnet link in my torrent client. I have qbittorrent installed but I still can't seem to download from magnet links.
A little box always shows up asking what application I want to use and there is a button that says "browse" but I can't choose anything.
How can I use such links on Ubuntu?
And when you go to explain, please explain every detail as if you are talking to someone who doesn't know anything about Ubuntu.