Word Counter

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "manifest_version": 2,
  "name": "Word Counter",
  "short_name": "PM",
  "description": "Select text and find how many words and letters are in it by clicking the icon! Also it displays the average letter count per word.",
  "version": "1.0",
  "browser_action": {
    "default_icon": "icon.png",
    "default_popup": "popup.html",
    "default_title": "Word Counter"
  },
  "content_scripts": [
    {
      "matches": [
        "http://*/*",
        "https://*/*"
      ],
      "js": [
        "googleDocsUtil.js"
      ]
    },
    {
      "matches": [
        "http://*/*",
        "https://*/*"
      ],
      "js": [
        "contentScript.js"
      ]
    }
  ],
  "permissions": [
    "tabs",
    "http://*/*",
    "https://*/*"
  ]
}