Emoticon input everywhere

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "manifest_version": 2,
  "name": "Emoticon input everywhere",
  "short_name": "Emoticon input",
  "description": "Allow input emoticon in everywhere",
  "version": "1.3",
  "author": "Robin Huy",
  "browser_action": {
    "default_icon": "icon.png",
    "default_popup": "popup.html",
    "default_title": "Emoticon input everywhere"
  },
  "content_scripts": [
    {
      "matches": [
        "http://*/*",
        "https://*/*"
      ],
      "js": [
        "content.js"
      ]
    }
  ],
  "permissions": [
    "activeTab"
  ]
}