Change Tab Quickly

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "manifest_version": 2,
  "name": "Change Tab Quickly",
  "short_name": "CTQ",
  "version": "0.0.3",
  "description": "Change Tab Quckly. Use shortcut key or click",
  "author": "traveler",
  "icons": {
    "16": "images/16.png",
    "128": "images/128.png"
  },
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": false
  },
  "browser_action": {
    "default_icon": {
      "19": "images/19.png",
      "38": "images/38.png"
    },
    "default_popup": "popup.html"
  },
  "permissions": [
    "storage",
    "tabs",
    "http://*/*",
    "https://*/*"
  ],
  "commands": {
    "_execute_browser_action": {
      "suggested_key": {
        "default": "Alt+Q"
      },
      "description": "Invoke browser action."
    }
  }
}