unfollow.js

const sleep = (milliseconds) => {
  return new Promise(resolve => setTimeout(resolve, milliseconds))
}
for (let i=0;i<1000;i++) {
  sleep(1000).then(() => {
    let startEmberId = 60
    document.querySelector(`#ember${startEmberId+i}`).click()
    console.log(`clicked #ember${startEmberId+i}`)
  })
}