Run getElementsBy in multiple url's

Question

I would like to run a script in the browser console that will open an array of url's one by one with a few seconds delay between them, better if in the same tab, will copy some data from the page and will insert it into a file and download it after finishing the url's. This is what I got so far, but still not working. Do you know of any alternative to get the this result?

Thanks for the answers.

// website lists
const urlList = ['https://stackoverflow.com/questions/237104/how-do-i-check-if-an-array-includes-a-value-in-javascript?rq=1', 'https://stackoverflow.com/questions/586182/how-to-insert-an-item-into-an-array-at-a-specific-index-javascript?rq=1', 'https://stackoverflow.com/questions/5767325/how-can-i-remove-a-specific-item-from-an-array-in-javascript?rq=1'];

const writeToTextFile = (text, fileName) => {
  let textFile = null;
  const makeTextFile = (text) => {
    const data = new Blob([text], {
      type: 'text/plain',
    });
    if (textFile !== null) {
      window.URL.revokeObjectURL(textFile);
    }
    textFile = window.URL.createObjectURL(data);
    return textFile;
  };
  const link = document.createElement('a');
  link.setAttribute('download', fileName);
  link.href = makeTextFile(text);
  link.click();
};





// variable for keeping track of array position(urls)
let fileData = '###';
let i = 0;

// create interval with 10seconds delay and keep 
// interval reference to clear the event in future
let int = setInterval(() => {
  // update the location with next array value
    
    
  // open the first url and cache the window object reference
let win = window.open(urlList[i], "_blank")
    
  // check value of i and increment, if reached the max value then clear the interval
            
setTimeout(function execute() {
    
         console.log(win.document.getElementsByTagName("h1"));
    fileData = fileData + "###"+win.document.getElementsByTagName("h1");

    
    }, 3000);
    
    

  if (i++ >= urlList.length) {
      writeToTextFile(fileData, 'output.txt');
      clearInterval(int);
}, 6000)
  }