Examine source code of ProdTime - PlugIn

{
  "name": "ProdTime - PlugIn",
  "version": "1.1.6resigned1",
  "manifest_version": 2,
  "permissions": [
    "activeTab",
    "*://*/*",
    "tabs",
    "webNavigation"
  ],
  "description": "Integration ProdTime com o Browser. (www.lamfsistemas.com.br)",
  "icons": {
    "16": "icon128.png",
    "48": "icon128.png",
    "128": "icon128.png"
  },
  "background": {
    "scripts": [
      "ProdTimeIntegration.js"
    ],
    "persistent": true
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{c97d5850-ab8c-4272-a812-fa980717b7ed}"
    }
  }
}