Examine source code of はてなブックマーク ブックマーク機能

{
  "manifest_version": 2,
  "name": "はてなブックマーク ブックマーク機能",
  "description": "気になるWebページを簡単にブックマークできる、はてなブックマーク公式の拡張機能です。",
  "version": "2.0.3",
  "permissions": [
    "storage",
    "unlimitedStorage",
    "tabs",
    "alarms",
    "activeTab",
    "https://*/*",
    "http://*/*"
  ],
  "browser_action": {
    "default_popup": "pages/popup.html",
    "default_icon": {
      "16": "assets/icon/bookmark16.png",
      "48": "assets/icon/bookmark48.png",
      "128": "assets/icon/bookmark128.png"
    }
  },
  "commands": {
    "_execute_browser_action": {
      "suggested_key": {
        "default": "Ctrl+B",
        "mac": "MacCtrl+Shift+B"
      }
    }
  },
  "content_scripts": [
    {
      "matches": [
        "http://*/*",
        "https://*/*"
      ],
      "js": [
        "content.js"
      ]
    }
  ],
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": true
  },
  "icons": {
    "16": "assets/icon/bookmark16.png",
    "48": "assets/icon/bookmark48.png",
    "128": "assets/icon/bookmark128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{b635fb0d-80bd-477f-91c8-d6cb60028077}"
    }
  }
}