Examine source code of nMojis

{
  "manifest_version": 3,
  "name": "nMojis",
  "version": "0.0.1",
  "description": "View and download Discord server emojis with a clean Firefox UI.",
  "browser_specific_settings": {
    "gecko": {
      "id": "nmojis@firefox-extension.thenolle.com",
      "strict_min_version": "109.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    },
    "gecko_android": {}
  },
  "action": {
    "default_title": "nMojis",
    "default_popup": "index.html"
  },
  "permissions": [
    "activeTab",
    "downloads",
    "tabs",
    "storage",
    "scripting"
  ],
  "host_permissions": [
    "https://discord.com/*",
    "https://cdn.discordapp.com/*"
  ],
  "icons": {
    "32": "favicon.svg",
    "48": "favicon.svg",
    "96": "favicon.svg",
    "128": "favicon.svg"
  }
}