Examine source code of Screeb

{
  "name": "Screeb",
  "version": "1.0.1",
  "description": "Continuous Product Discovery, Without the Time Sink.",
  "permissions": [
    "cookies",
    "*://*.screeb.app/*",
    "*://localhost/*"
  ],
  "manifest_version": 2,
  "browser_action": {
    "default_popup": "popup.html",
    "default_icon": {
      "16": "images/logo/favicon-16.png",
      "32": "images/logo/favicon-32.png",
      "48": "images/logo/favicon-48.png",
      "64": "images/logo/favicon-64.png",
      "96": "images/logo/favicon-96.png",
      "128": "images/logo/favicon-128.png"
    },
    "default_title": "Screeb"
  },
  "icons": {
    "16": "images/logo/favicon-16.png",
    "32": "images/logo/favicon-32.png",
    "48": "images/logo/favicon-48.png",
    "64": "images/logo/favicon-64.png",
    "96": "images/logo/favicon-96.png",
    "128": "images/logo/favicon-128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{1693c9f5-91ef-4489-b2dc-90f40bde20fd}"
    }
  }
}