Examine source code of zowintips57

{
  "name": "More Ractive Data",
  "version": "1.5",
  "description": "Adds details about Ractive Components to Firefox via the web extensions API (based on the Chrome plugin).",
  "devtools_page": "devtools.html",
  "manifest_version": 2,
  "icons": {
    "128": "icon.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{4e91c674-4c54-42c6-bba9-d6c456024ca0}"
    }
  }
}