Examine source code of Email Template Saver

{
  "manifest_version": 2,
  "name": "Email Template Saver",
  "version": "1.0",
  "description": "Save and use personalized email templates.",
  "permissions": [
    "storage",
    "activeTab"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_action": {
    "default_popup": "popup.html",
    "default_icon": "icons/icon.png"
  },
  "icons": {
    "48": "icons/icon.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{c892cf5e-515a-4852-8a21-209078f9e0ce}"
    }
  }
}