Examine source code of Link Cleaner (Remove UTM)

{
  "manifest_version": 2,
  "name": "Link Cleaner (Remove UTM)",
  "version": "1.0.0",
  "description": "One-click remove tracking parameters (utm_*, fbclid, gclid, etc.) from the current tab URL.",
  "homepage_url": "https://example.com",
  "icons": {
    "48": "icon-48.png",
    "96": "icon-96.png"
  },
  "permissions": [
    "tabs"
  ],
  "browser_action": {
    "default_title": "Clean this link",
    "default_popup": "popup.html"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "@link-cleaner.local",
      "strict_min_version": "109.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "optional": []
      }
    }
  }
}