Open link in a new popup window in Chrome.

manifest.json

{
  "name": "Poput it up!",
	"version": "1.0",
	"description": "Open the link in a new popup window instead of new tab",
	"permissions": ["contextMenus", "tabs"],
	"background": {
		"scripts": ["menu.js"]
	},
	"manifest_version": 2
}

menu.js

function openNewWindow(info, tab) {
  window.open(info.linkUrl, '', 'toolbar=no,status=no,menubar=no,location=no,resizable,scrollbars,directories=no,width=680,height=530,left=100,top=100');
}

var link = chrome.contextMenus.create(
	{	"title": "弹出窗口中打开",
		"contexts": ["link"],
		"onclick": openNewWindow
	});