Examine source code of Quuu Discover

{
  "name": "Quuu Discover",
  "version": "1.1resigned1",
  "manifest_version": 2,
  "description": "Quick access to the discover service",
  "background": {
    "scripts": [
      "content.js"
    ]
  },
  "icons": {
    "48": "Icons/48.png",
    "96": "Icons/96.png"
  },
  "browser_action": {
    "default_icon": {
      "48": "Icons/48.png",
      "96": "Icons/96.png"
    }
  },
  "permissions": [
    "tabs"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{510ddc9c-b8c4-483d-bcc4-95e9fd20d2c4}"
    }
  }
}