Examine source code of Working Tab Saver

{
  "manifest_version": 2,
  "name": "Working Tab Saver",
  "version": "1.1resigned1",
  "description": "Save your tabes when You finished working and you want to do other thinks and reload it when you want to work again.",
  "icons": {
    "128": "img/icon128.png",
    "512": "img/icon512.png"
  },
  "permissions": [
    "storage",
    "tabs"
  ],
  "browser_action": {
    "default_icon": "img/icon128.png",
    "default_popup": "home.html"
  },
  "commands": {
    "call extention": {
      "suggested_key": {
        "default": "Ctrl+Shift+F",
        "mac": "MacCtrl+Shift+F"
      },
      "description": "Call The Extention"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{b494d439-3c62-4342-b20e-9b9c7910d15d}"
    }
  }
}