Examine source code of Minimal Tabs

{
  "manifest_version": 3,
  "name": "Minimal Tabs",
  "version": "0.1.3",
  "description": "Optimize your search habits by limiting the number of tabs you can create.",
  "action": {
    "default_icon": {
      "128": "icons/icon_128.png"
    },
    "default_title": "Minimal Tabs",
    "default_popup": "popup/popup.html"
  },
  "background": {
    "scripts": [
      "background.js"
    ],
    "type": "module"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "minimal_tabs@hydration.org"
    }
  }
}