Examine source code of Mobile Twitter Redirect

{
  "name": "Mobile Twitter Redirect",
  "version": "1.0.0",
  "author": "yemre-okurugul",
  "description": "automatically redirect the mobile twitter links to twitter.com/...",
  "permissions": [],
  "content_scripts": [
    {
      "matches": [
        "https://mobile.twitter.com/*"
      ],
      "js": [
        "mob.js"
      ]
    }
  ],
  "manifest_version": 2,
  "browser_specific_settings": {
    "gecko": {
      "id": "{66e09257-a7ba-4686-a9b8-226fb9357924}"
    }
  }
}