Remove crashed sessions in Tabs Outliner

remove_crashed_sessions.js

function search_and_remove() {
  // Search for crashed windows and tabs. Reverse the list so that we delete
  // from the bottom, which is MUCH faster.
  elements = Array.from(document.querySelectorAll('li.savedwinNTASC,li.savedtabNTASC')).reverse();

  if (elements.length == 0) {
    console.log("Finished removing stale windows and tabs.");
    return;
  }

  // Hover over the element.
  elements[0].childNodes[0].dispatchEvent(new MouseEvent('mouseover', {
    'view': window,
    'bubbles': true,
    'cancelable': true
  }));

  // Click the trash icon.
  document.querySelectorAll('span.hoveringMenu_deleteAction')[0].click();

  // Give a bit of time for the deletion to finish.
  setTimeout(search_and_remove, 10);
}