Examine source code of T3-Data4Me

{
  "description": "Helping Users to protect their private data shared while surfing websites",
  "manifest_version": 2,
  "name": "T3",
  "version": "0.0.8",
  "browser_action": {
    "default_popup": "skin/popup.html",
    "default_icon": "icon/t3_logo.png"
  },
  "permissions": [
    "webRequest",
    "storage",
    "<all_urls>",
    "tabs",
    "cookies",
    "webRequestBlocking"
  ],
  "background": {
    "scripts": [
      "js/background.js",
      "lib/vendor/jquery-3.3.1.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "css": [
        "skin/vendor/tingle.css"
      ]
    }
  ]
}