Examine source code of AMSify

{
  "manifest_version": 2,
  "name": "AMSify",
  "version": "1.0",
  "description": "Adds wages to all ams job offers.",
  "icons": {
    "48": "icons/amsify-48.png",
    "96": "icons/amsify-96.png"
  },
  "browser_action": {
    "browser_style": true,
    "default_popup": "popup/popup.html",
    "default_icon": {
      "16": "icons/amsify-16.png",
      "32": "icons/amsify-32.png"
    }
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.ams.at/*"
      ],
      "js": [
        "price_extraction.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{594c791a-26d3-4457-8393-fa6518b6682f}"
    }
  }
}