Examine source code of Data Export and Import

{
  "manifest_version": 2,
  "name": "Data Export and Import",
  "version": "1.0",
  "description": "Data Export and Import is a utility that allows you to upload a file and then process and download the csv file",
  "permissions": [],
  "browser_action": {
    "default_popup": "game.html",
    "default_icon": {
      "128": "images/ext-logo.png"
    }
  },
  "icons": {
    "128": "images/ext-logo.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{eba94368-658d-40e1-84ff-f12ae63eee14}"
    }
  }
}