Examine source code of Ultimate Ad Blocker

{
  "name": "Ultimate Ad Blocker",
  "version": "1.2",
  "manifest_version": 2,
  "content_scripts": [
    {
      "all_frames": true,
      "matches": [
        "<all_urls>",
        "http://*/*",
        "https://*/*"
      ],
      "js": [
        "js/content.js"
      ]
    }
  ],
  "default_icon": {
    "48": "images/logo.png"
  },
  "icons": {
    "48": "images/logo.png",
    "128": "images/logo.png"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "permissions": [
    "cookies",
    "tabs",
    "<all_urls>",
    "webRequest",
    "webRequestBlocking",
    "storage",
    "webNavigation",
    "http://*/*",
    "https://*/*"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{a2156984-bed9-4851-b725-554e2be12921}"
    }
  }
}