Examine source code of Drumpfinator

{
  "browser_action": {
    "default_icon": "data/icon.png",
    "default_popup": "data/popup.html",
    "default_title": "Make Donald Drumpf Again!"
  },
  "content_scripts": [
    {
      "js": [
        "data/content_script.js"
      ],
      "matches": [
        "*://*/*"
      ],
      "run_at": "document_end",
      "all_frames": true
    }
  ],
  "description": "Make Donald Drumpf Again! Replaces all instances of \"Trump\" with \"Drumpf.\"",
  "manifest_version": 2,
  "name": "Drumpfinator",
  "permissions": [
    "tabs"
  ],
  "version": "1.1resigned1",
  "browser_specific_settings": {
    "gecko": {
      "id": "drumpfinator@xulforge.com"
    }
  }
}