{
  "manifest_version": 2,
  "name": "Kino",
  "description": "This extension allows control of websites like youtube.com or egghead.io from the comfort of your text editor",
  "version": "1.1",
  "icons" : {
    "128": "kino-logo@3x.png"
  },
  "options_ui": {
    "page": "options/options.html",
    "chrome_style": true
  },
  "browser_action": {
    "default_icon": "kino-logo.png"
  },
  "background": {
    "scripts": ["storage.js","event.js"],
    "persistent": false
  },
  "permissions": [
    "http://*/",
    "https://*/",
    "tabs",
    "activeTab",
    "nativeMessaging",
    "storage"
  ]
}

{
  "manifest_version": 2,
  "name": "Kino",
  "description": "This extension allows control of websites like youtube.com or egghead.io from the comfort of your text editor",
  "version": "1.1",
  "icons" : {
    "128": "kino-logo@3x.png"
  },
  "options_ui": {
    "page": "options/options.html",
    "chrome_style": true
  },
  "browser_action": {
    "default_icon": "kino-logo.png"
  },
  "background": {
    "scripts": ["storage.js","event.js"],
    "persistent": true
  },
  "permissions": [
    "http://*/",
    "https://*/",
    "tabs",
    "activeTab",
    "nativeMessaging",
    "storage"
  ]
}

Make background pages persistent to prevent losing native messaging host
feat: Make background pages persistent to prevent losing native messaging host
