Copy the code below into the console (Ctrl+Shift+J) on any https://worker.mturk.com/ page and hit enter. A file with you block list converted for HIT Finder will be downloaded.

Forker to Finder Block List

const blForker = JSON.parse(localStorage.getItem('_finder_bl'));

const blFinder = Object.keys(blForker).reduce((acc, key) => ({
  ...acc,
  [key]: {
    name: blForker[key].name,
    match: blForker[key].term,
    strict: true,
    term: blForker[key].term,
  }
}), {});

const el = document.createElement('a');
el.href = `data:text/plain;charset=utf-8,${encodeURIComponent(JSON.stringify(blFinder))}`;
el.download = 'Forker to Finder Block List.json';
document.body.appendChild(el);
el.click();
document.body.removeChild(el);

How do I make this work as a new script on tampermonkey?