Examine source code of Minimal Speed Dial

{
  "manifest_version": 3,
  "name": "Minimal Speed Dial",
  "description": "Minimal Speed Dial that populates with the links bookmarked on your Bookmarks/HomePage folder",
  "version": "0.2.0",
  "author": "Jorge Moreno, @alterebro",
  "icons": {
    "128": "icons/icon-128.png"
  },
  "chrome_url_overrides": {
    "newtab": "index.html"
  },
  "permissions": [
    "bookmarks",
    "tabs"
  ],
  "web_accessible_resources": [
    {
      "resources": [
        "*",
        "_favicon/*"
      ],
      "matches": [
        "<all_urls>"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "minimal-speed-dial@alterebro.com",
      "strict_min_version": "140.0",
      "data_collection_permissions": {
        "required": [
          "websiteActivity"
        ]
      }
    }
  }
}