Examine source code of FixupX Linker

{
  "manifest_version": 3,
  "name": "FixupX Linker",
  "version": "1.0.0",
  "description": "Adds a button next to tweet timestamps on x.com and twitter.com to copy a fixupx.com link.",
  "content_scripts": [
    {
      "matches": [
        "*://x.com/*",
        "*://*.x.com/*",
        "*://twitter.com/*",
        "*://*.twitter.com/*"
      ],
      "js": [
        "content.js"
      ],
      "css": [
        "content.css"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "fixupxlinker@gazzoose.github.io",
      "strict_min_version": "109.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}