noob.js

var sqlite = require('sqlite3')

var db = new sqlite.Database('/home/tomato/.mozilla/firefox/kbp250uo.dev/places.sqlite')

function each (query) {
  return new Promise((resolve, reject) => {
    try {
      db.each(query, resolve)
    } catch (exception) {
      reject(exception)
    }
  })
}

async function main (..args) {
  let results
  let query
  let done
  
  query = `SELECT fk FROM moz_bookmarks WHERE type=1 ORDER BY lastModified`
  results = await each(query)
  done = []
  
  if (done.indexOf(row.fk) === -1) {
    done.push(row.fk)
    console.log(row.fk) // this prints lots of numbers
  }
  
  console.log(done)
}

main()