Examine source code of clipweburls

{
  "manifest_version": 2,
  "version": "1.1",
  "name": "lead tracker",
  "action": {
    "default_popup": "chrome.html",
    "default_icon": "index.png"
  },
  "permissions": [
    "tabs"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{36483ba8-d0b1-4280-913f-9b4ede250e04}"
    }
  }
}