Examine source code of Smart Copy Saver

{
  "manifest_version": 2,
  "name": "Smart Copy Saver",
  "version": "1.0",
  "description": "Automatically saves copied text and lets you view your copy history.",
  "permissions": [
    "clipboardRead",
    "storage"
  ],
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": false
  },
  "browser_action": {
    "default_popup": "popup.html",
    "default_icon": "icon.png"
  },
  "icons": {
    "48": "icon.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{eaba7be6-d7ff-49c3-82e2-77a189d798ec}"
    }
  }
}