Examine source code of Links App

{
  "manifest_version": 3,
  "name": "Links",
  "description": "Links app companion extension",
  "version": "0.1.0",
  "icons": {
    "16": "images/icon16.png",
    "32": "images/icon32.png",
    "48": "images/icon48.png",
    "128": "images/icon128.png"
  },
  "background": {
    "scripts": [
      "main-service-worker.js"
    ]
  },
  "action": {},
  "options_ui": {
    "page": "options/index.html",
    "open_in_tab": true
  },
  "host_permissions": [
    "<all_urls>"
  ],
  "permissions": [
    "storage",
    "activeTab"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "links@220191.xyz"
    }
  }
}