simply head to the discord login page and there will be a little window in the top right side, simply put your discord token into the field and press "login" and wait a few seconds, then you should be all set!
- head to tampermonkeys website and download the browser extension yes it's safe idiot.
- Click the extension and press "Create a new script..."
- paste script.js into the new screen
- you should be all set, if not submit an issue on github.
Its open source so you cant get token logged from installing it, ye idk what else to say xD.