Examine source code of SzNOW

{
  "name": "SzNOW",
  "version": "0.0.2resigned1",
  "manifest_version": 2,
  "description": "Enhances Service NOW experience",
  "icons": {
    "16": "icons/icon16.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "default_locale": "en",
  "permissions": [
    "clipboardRead",
    "contextMenus",
    "https://*.service-now.com/*"
  ],
  "content_scripts": [
    {
      "matches": [
        "https://*.service-now.com/*"
      ],
      "js": [
        "src/inject/inject.js"
      ],
      "run_at": "document_idle",
      "all_frames": true
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{5f1b862b-d341-4841-9c9f-056c02e2e573}"
    }
  }
}