old_contents: function OpenManager() {
    chrome.tabs.create({url:"manager.html"})
  }
  document.getElementById("managerBtn").onclick = OpenManager
  chrome.tabs.getSelected(function(tab){
    document.getElementById("newEntryTitle").value = tab.title
  })
  document.getElementById("newEntryUrl").value = document.URL
  
new_contents: function OpenManager() {
    chrome.tabs.create({url:"manager.html"})
  }
  document.getElementById("managerBtn").onclick = OpenManager
  chrome.tabs.getSelected(function(tab){
    document.getElementById("newEntryTitle").value = tab.title
    document.getElementById("newEntryUrl").value = tab.url
  })
  
subject: Set entry url correctly