Examine source code of Fudo Password Vault

{
  "manifest_version": 2,
  "name": "Password Vault",
  "description": "Browse and autofill secrets from your Fudo Password Vault server.",
  "version": "1.0.0",
  "short_name": "PassVault",
  "icons": {
    "16": "icon/16.png",
    "32": "icon/32.png",
    "48": "icon/48.png",
    "96": "icon/96.png",
    "128": "icon/128.png"
  },
  "browser_action": {
    "default_icon": {
      "16": "icon/16.png",
      "32": "icon/32.png",
      "48": "icon/48.png",
      "96": "icon/96.png",
      "128": "icon/128.png"
    },
    "default_title": "Default Popup Title",
    "default_popup": "popup.html"
  },
  "browser_specific_settings": {
    "gecko": {
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      },
      "id": "{b3d06dd2-806e-4976-b820-bf6e3b32368b}"
    }
  },
  "permissions": [
    "storage",
    "alarms",
    "<all_urls>"
  ],
  "optional_permissions": [
    "declarativeWebRequest"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "run_at": "document_idle",
      "js": [
        "content-scripts/content.js"
      ]
    }
  ]
}