Examine source code of Save Link

{
  "manifest_version": 3,
  "name": "Save Link",
  "version": "1.3.0",
  "description": "Downloads a link in a browser agnostic format and closes the tab. Inspired by \"Save a link to the current tab\" by Nathaniel M. Foley-Beaver",
  "browser_specific_settings": {
    "gecko": {
      "id": "{5afe8100-0a54-439e-8197-8d94746d177c}"
    }
  },
  "icons": {
    "48": "icon.svg",
    "96": "icon.svg"
  },
  "action": {
    "default_icon": "icon.svg"
  },
  "permissions": [
    "activeTab",
    "contextMenus"
  ],
  "background": {
    "scripts": [
      "script.js"
    ]
  }
}