Examine source code of BitProof - Archive & Timestamp Web Pages

{
  "manifest_version": 2,
  "name": "BitProof — Archive & Timestamp Web Pages",
  "version": "1.0.1",
  "description": "Firefox build: capture, timestamp, and anchor any web page to the Bitcoin blockchain.",
  "permissions": [
    "activeTab",
    "storage",
    "contextMenus",
    "downloads",
    "tabs",
    "https://*/*",
    "http://localhost/*",
    "http://127.0.0.1/*"
  ],
  "icons": {
    "16": "icons/icon-16.png",
    "32": "icons/icon-32.png",
    "48": "icons/icon-48.png",
    "64": "icons/icon-64.png",
    "96": "icons/icon-96.png",
    "128": "icons/icon-128.png",
    "256": "icons/icon-256.png",
    "512": "icons/icon-512.png"
  },
  "browser_action": {
    "default_popup": "popup.html",
    "default_icon": {
      "16": "icons/icon-16.png",
      "32": "icons/icon-32.png",
      "48": "icons/icon-48.png",
      "128": "icons/icon-128.png"
    },
    "default_title": "BitProof — Archive This Page"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "bitproof-firefox@salvagg.io",
      "strict_min_version": "142.0",
      "data_collection_permissions": {
        "required": [
          "websiteActivity",
          "websiteContent"
        ]
      }
    }
  }
}