Get hreflang and alternate links

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "manifest_version": 3,
  "name": "Get hreflang and alternate links",
  "version": "0.0.1.1",
  "short_name": "Get hreflang links",
  "description": "This extension gets hreflang, alternate links on the active page",
  "author": "Rimraf",
  "icons": {
    "128": "icon_128.png",
    "286": "icon_286.png"
  },
  "commands": {
    "_execute_action": {
      "suggested_key": {
        "default": "Alt+Shift+K",
        "windows": "Alt+Shift+K",
        "mac": "Command+Shift+K",
        "chromeos": "Alt+Shift+K",
        "linux": "Alt+Shift+K"
      },
      "description": "Open extension",
      "global": false
    }
  },
  "action": {
    "default_icon": "icon_286.png",
    "default_popup": "get-hreflang.html",
    "default_title": "Get hreflang and alternate links"
  },
  "permissions": [
    "scripting",
    "activeTab"
  ]
}