Examine source code of js pause/resume extension

{
  "name": "JavaScript pause/resume",
  "description": "Pauses / resumes JavaScript execution",
  "version": "0.7",
  "permissions": [
    "debugger"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_action": {
    "default_icon": "debuggerPause.png",
    "default_title": "Pause JavaScript"
  },
  "manifest_version": 2,
  "browser_specific_settings": {
    "gecko": {
      "id": "{aefc851f-8989-4510-b95c-544c1f98853b}"
    }
  }
}