Examine source code of Advanced Request Delayer

{
  "manifest_version": 2,
  "name": "Advanced Request Delayer",
  "version": "1.2",
  "description": "Delays specific requests based on regex rules.",
  "permissions": [
    "webRequest",
    "webRequestBlocking",
    "<all_urls>",
    "storage"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_action": {
    "default_popup": "popup.html",
    "default_icon": {
      "32": "icon.png"
    },
    "default_title": "Advanced Request Delayer"
  },
  "icons": {
    "32": "icon.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{f7920085-4ac3-4651-a76b-c0c9754dad7e}"
    }
  }
}