Examine source code of Copilot Launcher Button

{
  "manifest_version": 2,
  "name": "Copilot Button",
  "version": "1.0",
  "description": "Adds a Copilot button to the toolbar",
  "permissions": [
    "activeTab"
  ],
  "browser_action": {
    "default_icon": "icon.png",
    "default_title": "Open Copilot"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{60c188fb-b478-41f1-944f-f1352370df76}"
    }
  }
}