Script to delete all emails from Proton Mail

gistfile1.txt

/**
 * Proton Mail - Delete All Mail Script
 *
 * This script deletes all mail from Proton Mail by
 * clicking Select all messages button, waiting and
 * clicking trash button. This is repeated indefinitely.
 *
 * 1. Open Proton Mail
 * 2. Navigate to Settings -> Messages and Composing
 * 3. Change Conversation per page to 200
 * 4. Open Proton Mail
 * 5. Navigate to All mail
 * 6. Select page 2
 * 7. Open Dev Tools and paste this script
 * 8. Watch your emails disappear
 *
 * Adjust DELAY as needed. Recommended value is 5000 milliseconds.
 */

const DELAY = 5000;

function clickSelectAll() {
  try {
    document.querySelector("#idSelectAll").click();
  } catch (e) {
    console.error(e);
  }
}

function clickTrash() {
  try {
    document.querySelector('[data-testid="toolbar:movetotrash"]').click();
  } catch (e) {
    console.error(e);
  }
}

function trashAll() {
  clickSelectAll();
  setTimeout(() => {
    clickTrash();
    setTimeout(trashAll, DELAY);
  }, DELAY);
}

setTimeout(trashAll, DELAY);