Examine source code of Export Format Selector

{
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_action": {
    "default_area": "navbar",
    "default_icon": "icon.png"
  },
  "icons": {
    "128": "icon.png"
  },
  "default_area": "navbar",
  "manifest_version": 2,
  "name": "__MSG_name__",
  "description": "__MSG_descriptions__",
  "permissions": [
    "clipboardWrite",
    "menus",
    "activeTab",
    "notifications"
  ],
  "version": "1.3.19",
  "browser_specific_settings": {
    "gecko": {
      "id": "{ab25db40-8196-4f4a-8d7e-3d0abac4d73e}"
    }
  }
}