manifest.json

{
  "manifest_version": 3,
  "name": "Chrome Extension Starter",
  "version": "1.0.0",
  "description": "",
  "icons": {
    "16": "assets/icons/icon16.png",
    "48": "assets/icons/icon48.png",
    "128": "assets/icons/icon128.png"
  },
  "action": {
    "default_icon": {
      "16": "assets/icons/icon16.png",
      "24": "assets/icons/icon24.png",
      "32": "assets/icons/icon32.png"
    },
    "default_popup": "popup/index.html",
    "default_title": "Starter Popup"
  },
  "content_scripts": [
    {
      "js": [
        "content/index.js"
      ],
      "matches": ["<all_urls>"]
    }
  ],
  "background": {
    "service_worker": "background/index.js"
  },
  "devtools_page": "devtools/index.html",
  "options_page": "options/index.html",
  "web_accessible_resources": [{
    "resources": [
      "assets/icons/*.png"
    ],
    "matches": [],
    "extension_ids": []
  }],
  "permissions": [
    "tabs"
  ],
  "host_permissions": [
    "*://*/*"
  ]
}