Mohamed Mahmoud made a new version of the extension ”Facebook chat emotions with animated picture and big emotions” !
Get it her: http://userscripts.org/scripts/show/140346
Some people have trouble installing extensions with Google Chrome, because it says “you can only install plugins/whatever from the Chrome Store”… Don’t worry tho, because it will be available soon in the ”Google chrome web store” !
(stay tuned for updates)
Here’s a guide on how to install it: