Examine source code of Smart Blocker

{
  "manifest_version": 2,
  "name": "Smart Blocker",
  "description": "__MSG_description__",
  "version": "1.0.2",
  "content_scripts": [
    {
      "all_frames": true,
      "js": [
        "adguard/adguard-content.js"
      ],
      "matches": [
        "http://*/*",
        "https://*/*"
      ],
      "match_about_blank": true,
      "run_at": "document_start"
    }
  ],
  "default_locale": "en",
  "background": {
    "scripts": [
      "adguard/adguard-api.js",
      "scripts/background.js"
    ],
    "persistent": true
  },
  "icons": {
    "16": "images/Yellow_reversed/Logo_16x16.png",
    "32": "images/Yellow/Logo_32x32.png",
    "48": "images/Yellow/Logo_48x48.png",
    "128": "images/Yellow/Logo_128x128.png"
  },
  "browser_action": {
    "default_icon": "images/Yellow_reversed/Logo_32x32.png",
    "default_popup": "popup.html"
  },
  "permissions": [
    "storage",
    "tabs",
    "cookies",
    "webRequest",
    "webRequestBlocking",
    "webNavigation",
    "http://*/*",
    "https://*/*",
    "ws://*/*",
    "wss://*/*"
  ]
}