Hey I though since I'v been using this method for a while and its working like a charm for me why not share it with you guys? Okay here we go, what you need:

1) A seedbox with WEBui
2) Firefox bittorrent add-on
https://addons.mozilla.org/en-US/firefox/addon/7715
3) torrent site

First thing you need to do is DL that add-on, install it and restart firefox.
Then just go browsing for hot releases and when you see one, just click the download button and if everything is working like it should you should see a "success" message in the lower right corner of your screen (like in the SS). Easy way to add files to your seedbox with only 1 mouse click, don't you think?
Just a side note: Remember to disable the add-on if you don't want to download your files to your seedbox.