manifest.json

// most of this code was taken from here: https://developer.chrome.com/extensions/getstarted

// metada file in JSON which delcares what your chrome 
// extension will do and permissions required to do
// those things

{
  // properties of your chrome extension

  // manifest_version, name, and version are *required*
  "manifest_version": 2,
  "name": "My First Chrome Extension",
  "version": "1.0",
  "description": "This extension will tweet the link of the current page you are looking at",
  // API to request permissions
  // in this example we are asking for permission
  // to use the chrome.tabs API and Twitter API
  "permissions": [
    "tabs",
    "*://*.twitter.com/*"
  ],

  // could do browser_action or page_action or none
  // read more about browser_action: https://developer.chrome.com/extensions/browserAction
  "browser_action": {
    // icon in the google chrome toolbar
    "default_icon": "icon.png",
    // some html that will pop up when you hover over the icon
    // need to have a popup.html file that specifies what it
    // will look like
    "default_popup": "popup.html",
    // will appear when you hover over the link
    "default_title": "click me!"
  }
}