Examine source code of Untrack links

{
  "manifest_version": 2,
  "name": "Untrack links",
  "version": "1.0",
  "description": "Replace links like https://google.com/?q=https://example.com/article with https://example.com/article.",
  "homepage_url": "https://codeberg.org/Firesphere/firefox-untrack-redirect",
  "author": "Simon `Firesphere` Erkelens",
  "icons": {
    "16": "icons/link-icon.svg",
    "32": "icons/link-icon.svg",
    "48": "icons/link-icon.svg",
    "64": "icons/link-icon.svg",
    "96": "icons/link-icon.svg"
  },
  "permissions": [
    "<all_urls>"
  ],
  "content_scripts": [
    {
      "matches": [
        "http://*/*",
        "https://*/*"
      ],
      "js": [
        "untrack.js"
      ],
      "run_at": "document_end"
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{d2046015-28e4-43aa-b6c8-9d282723232a}"
    }
  }
}