Examine source code of Open in cooked.wiki

{
  "manifest_version": 3,
  "name": "__MSG_extensionName__",
  "description": "__MSG_extensionDescription__",
  "version": "0.1",
  "default_locale": "en",
  "browser_specific_settings": {
    "gecko": {
      "id": "cooked@addons.mozilla.org",
      "strict_min_version": "115.0"
    },
    "gecko_android": {
      "id": "cooked@addons.mozilla.org",
      "strict_min_version": "115.0"
    }
  },
  "background": {
    "scripts": [
      "cooked.js"
    ]
  },
  "action": {
    "default_icon": {
      "16": "icons/c-16.png",
      "32": "icons/c-32.png"
    },
    "default_title": "__MSG_extensionTooltip__"
  },
  "icons": {
    "48": "icons/c-48.png",
    "96": "icons/c-96.png"
  },
  "permissions": [
    "activeTab"
  ]
}