Examine source code of OldReddit

{
  "manifest_version": 2,
  "name": "OldReddit",
  "version": "1.0.2resigned1",
  "description": "Automatically switches reddit pages to old reddit pages.",
  "icons": {
    "48": "icons/48.png",
    "96": "icons/96.png"
  },
  "content_scripts": [
    {
      "matches": [
        "*://www.reddit.com/r/*",
        "*://www.reddit.com/user/*",
        "*://reddit.com/"
      ],
      "js": [
        "oldreddit.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{2d1409bf-3e43-4dc4-bb30-64822203bee4}"
    }
  }
}