Examine source code of Address icon

{
  "manifest_version": 2,
  "name": "Address icon",
  "version": "1.0",
  "description": "Address icons help users easily identify the location, destination, or contact information of a store, office, or residence.",
  "icons": {
    "48": "icon.png"
  },
  "browser_action": {
    "default_icon": "icon.png",
    "default_popup": "popup.html",
    "default_title": "Click me!"
  },
  "permissions": [
    "activeTab"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{d60a5841-e4b2-4f25-a100-819274df003f}"
    }
  }
}