Nothing beats Google Chrome in terms of extensions and add-ons. Here are 13 extensions you probably haven’t heard of before, and you’ll be glad to know about them now.
https://gigaom.com/2014/09/13/13-google-chrome-extensions-you-should-know-about
DawsonITE is a blog devoted to Educational Technology. It's compiled by Rafael Scapin, Coordinator of Educational Technology at Dawson College in Montreal (Canada).