Examine source code of BetterCF

{
  "manifest_version": 2,
  "name": "BetterCF",
  "version": "0.1.2resigned1",
  "description": "Improves UI of CurseForge and adds additional features.",
  "icons": {
    "48": "images/48.png"
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.curseforge.com/projects/*/files/*"
      ],
      "js": [
        "content.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{92cea7c5-6779-4e47-9c5f-fcf1c0137eab}"
    }
  }
}