Click on the extension's icon and a popup will show you and the site you are viewing on two maps along with your IP addresses.
Thanks to http://www.geoipview.com for the geolocation service.
Thanks to FAM FAM FAM for the map icon (http://www.famfamfam.com/lab/icons/silk/)
谷歌浏览器、其他Chromium内核的浏览器