Examine source code of DecisionMaker

{
  "manifest_version": 2,
  "name": "DecisionMaker",
  "version": "1.1resigned1",
  "description": "Helps you making important decision",
  "icons": {
    "50": "icons/plusminus.png"
  },
  "browser_action": {
    "default_icon": {
      "50": "icons/plusminus.png"
    },
    "default_title": "Decisionmaker",
    "default_popup": "decisionmaker.html"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{cd39ef1f-dc99-4f38-a96d-d3117f3104e5}"
    }
  }
}