Examine source code of FP Archive

{
  "name": "FP Archive",
  "icons": {
    "16": "icon16.png",
    "48": "icon48.png",
    "128": "icon128.png"
  },
  "version": "0.4",
  "description": "This extension will allow you to use existing Facepunch links in search results/old links.",
  "manifest_version": 2,
  "content_scripts": [
    {
      "matches": [
        "http://forum.facepunch.com/*",
        "https://forum.facepunch.com/*"
      ],
      "js": [
        "fpArchive.js"
      ]
    }
  ],
  "permissions": [
    "tabs"
  ]
}