No chat on the book of faces

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "name": "No chat on the book of faces",
  "version": "1.6",
  "description": "Open messages in messages page, not in the chat",
  "icons": {
    "48": "icon48.png",
    "128": "icon128.png"
  },
  "content_scripts": [
    {
      "matches": [
        "https://www.facebook.com/*"
      ],
      "js": [
        "script.js"
      ]
    }
  ],
  "manifest_version": 2
}