Custom Shortcuts for Google Earth Web

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "manifest_version": 3,
  "version": "4.0.3",
  "version_name": "4.0.3",
  "name": "Custom Shortcuts for Google Earth Web",
  "description": "Modify keyboard shortcuts to make browsing Google Earth Web more fluid.",
  "permissions": [
    "storage"
  ],
  "host_permissions": [
    "*://earth.google.com/web*"
  ],
  "action": {
    "default_icon": "icon128.png",
    "default_popup": "popup.html"
  },
  "icons": {
    "128": "icon128.png"
  },
  "content_scripts": [
    {
      "matches": [
        "*://earth.google.com/web*"
      ],
      "js": [
        "content_script.js"
      ]
    }
  ]
}