Mturk BBox Counter(Auto)

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "name": "Mturk BBox Counter(Auto)",
  "description": "This extension will count all the BBoxes you have made in mturk work, just click on 'Count BBoxes' it will show the count.",
  "version": "3.8.7",
  "manifest_version": 2,
  "content_scripts": [
    {
      "matches": [
        "https://worker.mturk.com/*"
      ],
      "js": [
        "js/content.js"
      ]
    }
  ],
  "icons": {
    "16": "images/16.png",
    "48": "images/48.png",
    "128": "images/128.png"
  },
  "browser_action": {
    "default_icon": "images/32.png",
    "default_popup": "popup.html",
    "default_title": "Mturk BBox Counter"
  },
  "permissions": [
    "https://worker.mturk.com/*",
    "storage"
  ]
}