Examine source code of ext-coll

{
  "manifest_version": 2,
  "name": "ext-cool",
  "version": "0.2resigned1",
  "browser_action": {
    "default_popup": "popup.html"
  },
  "permissions": [
    "management"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{cd34611e-adda-401c-a41c-e7bd0a5ca630}"
    }
  }
}