Examine source code of ILIKEE

{
  "manifest_version": 3,
  "version": "1.0",
  "name": "ilikee-crx",
  "description": "An Extension.js template using Vue. This template includes a new tab override.",
  "browser_specific_settings": {
    "gecko": {
      "id": "gastonwu@ilikee.net"
    }
  },
  "icons": {
    "16": "public/icons/icon_16.png",
    "48": "public/icons/icon_48.png"
  },
  "background": {
    "scripts": [
      "background/scripts.js"
    ]
  },
  "action": {
    "default_popup": "action/default_popup.html",
    "default_icon": {
      "16": "public/icons/icon_16.png",
      "48": "public/icons/icon_48.png"
    }
  },
  "content_scripts": [
    {
      "run_at": "document_end",
      "matches": [
        "https://*/*",
        "http://*/*"
      ],
      "js": [
        "content_scripts/content-0.js"
      ],
      "css": []
    }
  ],
  "web_accessible_resources": [
    {
      "resources": [
        "icons/*",
        "js/inject.js",
        "img/logo-16.png",
        "img/logo-34.png",
        "img/logo-48.png",
        "img/logo-128.png",
        "web_accessible_resources/*"
      ],
      "matches": [
        "https://*/*",
        "http://*/*"
      ]
    }
  ],
  "permissions": [
    "storage",
    "background",
    "cookies"
  ],
  "host_permissions": [
    "*://*.ilikee.net/*",
    "*://*.video-word.com/*",
    "*://*.twitter.com/*",
    "*://*.youtube.com/*"
  ],
  "externally_connectable": {
    "matches": [
      "*://*.youtube.com/*",
      "*://*.ilikee.net/*"
    ]
  }
}