manifest.json

{
  "name": "Search Box Focus",
  "version": "0.4.0",
  "manifest_version": 3,
  "description": "Press Tab to quickly access the main search bar or search field of any website. No need to use your mouse! Autofocus available!",
  "icons": {
    "16": "icons/icons8-google-web-search-16.png",
    "48": "icons/icons8-google-web-search-full-48.png",
    "128": "icons/icons8-google-web-search-128.png"
  },
  "permissions": ["storage", "tabs"],
  "content_scripts": [
    {
      "matches": ["http://*/*", "https://*/*"],
      "js": ["content.js"]
    }
  ],
  "action": {
    "default_icon": {
      "16": "icons/icons8-google-web-search-16.png",
      "48": "icons/icons8-google-web-search-48.png",
      "128": "icons/icons8-google-web-search-128.png"
    },
    "default_popup": "popup.html"
  },
  "background": {
    "service_worker": "background.js"
  },
  "commands": {
    "focus-search-bar": {
      "suggested_key": {
        "default": "Alt+S"
      },
      "description": "Search Box Focus"
    }
  },
  "content_security_policy": {
    "script-src": "self",
    "object-src": "self"
  },
  "web_accessible_resources": [
    {
      "resources": ["/images/icon.png"],
      "matches": ["<all_urls>"]
    }
  ]
}