Examine source code of Password Disasterisker

{
  "manifest_version": 2,
  "name": "Password Disasterisker",
  "short_name": "PWDISKER",
  "author": "Roberto E. Oneto",
  "description": "__MSG_extensionDescription__",
  "version": "0.0.0.6",
  "background": {
    "scripts": [
      "script/background.js"
    ]
  },
  "browser_action": {
    "default_icon": "img/icon.png",
    "default_title": "OFF"
  },
  "web_accessible_resources": [
    "img/cursor.png"
  ],
  "icons": {
    "16": "img/icon.png",
    "48": "img/icon48.png",
    "128": "img/icon128.png"
  },
  "commands": {
    "_execute_browser_action": {
      "suggested_key": {
        "default": "Ctrl+Shift+8"
      },
      "description": "Toggle functionality on the curent page"
    }
  },
  "permissions": [
    "activeTab"
  ],
  "default_locale": "en",
  "browser_specific_settings": {
    "gecko": {
      "id": "{b92f4ee0-46d6-4409-97c9-07b92e301259}"
    }
  }
}