Examine source code of Cobra Speed Board

{
  "manifest_version": 3,
  "name": "Cobra Speed Board",
  "version": "0.3.7",
  "description": "A customizable speed board for your Firefox new tab page with boards, sections, shortcuts, Premium themes, cloud backup, and optional Premium wallpaper collections.",
  "permissions": [
    "storage",
    "tabs",
    "activeTab",
    "menus",
    "unlimitedStorage"
  ],
  "host_permissions": [
    "https://medcode.pl/api/cobra-speed-board/*",
    "https://www.medcode.pl/api/cobra-speed-board/*"
  ],
  "chrome_url_overrides": {
    "newtab": "newtab.html"
  },
  "background": {
    "scripts": [
      "background.js"
    ],
    "type": "module"
  },
  "action": {
    "default_title": "Cobra Speed Board"
  },
  "icons": {
    "16": "icons/icon-16.png",
    "32": "icons/icon-32.png",
    "48": "icons/icon-48.png",
    "128": "icons/icon-128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "biuro@medcode.pl",
      "strict_min_version": "142.0",
      "data_collection_permissions": {
        "required": [
          "personallyIdentifyingInfo",
          "authenticationInfo",
          "browsingActivity",
          "websiteContent"
        ],
        "optional": [
          "technicalAndInteraction"
        ]
      }
    }
  },
  "optional_host_permissions": [
    "<all_urls>"
  ]
}