message: fixed a bug where selenium ide window could be opened more than once
diff: @@ -25,13 +25,12 @@ window.master = master;
  window.openedWindowIds = [];
  function openPanel(tab) {
  -
  let contentWindowId = tab.windowId;
  - if (master[contentWindowId] != undefined) {
  - browser.windows.update(master[contentWindowId], {
  + if (ideWindowId) {
  + browser.windows.update(ideWindowId, {
  focused: true
  }).catch(function() {
  - master[contentWindowId] == undefined;
  + ideWindowId == undefined;
  openPanel(tab);
  });
  return;
  