Examine source code of F-List Chat Autofocus fix

{
  "manifest_version": 2,
  "name": "F-List Chat focus fix",
  "version": "1.0",
  "description": "Fixes a small nagging bug where the textbox in f-list looses focus when you click a link, making when you type it cuts the first letter",
  "content_scripts": [
    {
      "matches": [
        "https://www.f-list.net/chat3/*"
      ],
      "js": [
        "main.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "flist_fix@foxwashere"
    }
  }
}