Examine source code of YouTube™ AdBlock

{
  "author": "YouTube AdBlock developers",
  "background": {
    "page": "background.html"
  },
  "browser_action": {
    "browser_style": false,
    "default_icon": {
      "16": "img/icon_16.png",
      "32": "img/icon_32.png"
    },
    "default_popup": "popup.html",
    "default_title": "YouTube AdBlock"
  },
  "browser_specific_settings": {
    "gecko": {
      "strict_min_version": "55.0"
    }
  },
  "content_scripts": [
    {
      "all_frames": true,
      "js": [
        "/js/vapi.js",
        "/js/vapi-client.js",
        "/js/contentscript.js"
      ],
      "matches": [
        "http://*/*",
        "https://*/*",
        "file://*/*"
      ],
      "run_at": "document_start"
    },
    {
      "all_frames": false,
      "js": [
        "/js/adzero-config.js",
        "/js/adzero-contentscript.js"
      ],
      "matches": [
        "http://*/*",
        "https://*/*"
      ],
      "run_at": "document_end"
    },
    {
      "all_frames": false,
      "js": [
        "/js/scriptlets/subscriber.js"
      ],
      "matches": [
        "http://*/*",
        "https://*/*"
      ],
      "run_at": "document_idle"
    }
  ],
  "default_locale": "en",
  "description": "Ad Blocker for safe Internet browsing",
  "icons": {
    "16": "img/icon_16.png",
    "48": "img/icon_48.png",
    "96": "img/icon_96.png"
  },
  "manifest_version": 2,
  "name": "YouTube AdBlock",
  "options_ui": {
    "open_in_tab": true,
    "page": "about.html"
  },
  "permissions": [
    "contextMenus",
    "storage",
    "tabs",
    "cookies",
    "webNavigation",
    "webRequest",
    "webRequestBlocking",
    "notifications",
    "idle",
    "<all_urls>"
  ],
  "short_name": "YouTube Ad Block",
  "version": "19.1008.3593.0",
  "web_accessible_resources": [
    "/web_accessible_resources/*",
    "blocked-notification-bar.html",
    "/js/scriptlets/tour-frame.html"
  ]
}