Examine source code of Clipboarder

{
  "manifest_version": 2,
  "name": "Clipboarder",
  "description": "Upload clipboard images to Imgur",
  "version": "1.0",
  "icons": {
    "64": "icons/icon-64.png",
    "128": "icons/icon-128.png"
  },
  "permissions": [
    "storage",
    "notifications"
  ],
  "browser_action": {
    "default_icon": "icons/icon-64.png",
    "default_title": "Clipboarder",
    "default_popup": "popup.html"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{081bb147-e668-4887-9e23-c76f97503e75}",
      "strict_min_version": "115.0"
    }
  }
}