Examine source code of FocusFlow

{
  "manifest_version": 2,
  "name": "FocusFlow",
  "version": "1.0",
  "description": "FocusFlow is a dynamic Firefox add-on designed to enhance productivity through an integrated Pomodoro timer and focus mode.",
  "permissions": [
    "storage",
    "notifications"
  ],
  "browser_action": {
    "default_popup": "popup.html",
    "default_icon": "icon.png"
  },
  "icons": {
    "48": "icon.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{9a1c13dc-1d85-41f9-9a18-5d77ff711e37}"
    }
  }
}