Activate Facebook Old chat

Rather than using stupid facebook polls to have old chat back why don't we use it! I am using it and it totally works!!!
If u want the the old chat back in facebook click the following link:
1.For google chrome: https://chrome.google.com/webs​tore/detail/bfipfkeoidmndggnnp​obeenlamiclald?hl=en-US

2.For Firefox version: https://addons.mozilla.org/en-US/firefox/addon/fb-chat-sidebar-disabler/

3.For Opera version: https://addons.opera.com/addons/extensions/details/facebook-chat-sidebar-disabler/1.3/?display=en

It worked for me !
-Saurav Pandey