was ist das fuer 1 extension

content.js

// via http://stackoverflow.com/questions/10730309/find-all-text-nodes-in-html-page#answer-10730777
function findTextNodes(el) {
  var node;
  var textNodes = [];
  var walk = document.createTreeWalker(el, NodeFilter.SHOW_TEXT, null, false);
  while (node = walk.nextNode()) {
    textNodes.push(node);
  }
  return textNodes;
}

findTextNodes(document.body).forEach(function(e) {
  e.textContent = e.textContent.replace(/\be(in|ine|inen|iner|inem)\b/gi, '1');
});