Examine source code of Paste and Save Notepad

{
  "manifest_version": 2,
  "name": "Paste and Save Notepad",
  "version": "1.0",
  "description": "A paste and save notepad",
  "icons": {
    "48": "icons/unnamed.png",
    "64": "icons/unnamed.png"
  },
  "browser_action": {
    "browser_style": true,
    "default_popup": "note.html",
    "default_icon": {
      "16": "icons/unnamed.png",
      "32": "icons/unnamed.png",
      "96": "icons/unnamed.png",
      "128": "icons/unnamed.png"
    }
  },
  "permissions": [
    "activeTab",
    "tabs",
    "<all_urls>"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{5be0958f-d22b-48f7-bb8b-587af852611d}"
    }
  }
}