Examine source code of Quick Math Solver

{
  "manifest_version": 2,
  "name": "Quick Math Solver",
  "version": "1.0",
  "description": "Solve math problems quickly and easily.",
  "browser_action": {
    "default_popup": "popup.html"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{8d1b1ca7-e8fd-4573-8848-7e72bd867468}"
    }
  }
}