Trick to remove seen option from Facebook chat box

Facebook recently update new facility to remove  SEEN option from chat box.When you  are chating  with someone on Facebook, and the person read.Usually in facebook your message sented, it displays ‘seen’ along with the time when message was read.This is a best feature but some times it is problem as it allows your friend to know that your ignoring message from them.In past you can just skip the conversation by not giving reply back or pretended as you dint saw the message but know this trick fails as  soon as you saw the message it mark as read and it shows as 'SEEN BY' or 'SEEN ON.The old trick removing can be done again by cheating facebook.Here are various to remove SEEN option in various web browsers.You can remove this seen option by adding a simple extension for your Chrome or firefox browser.

                                         

[ (A) [GOOGLE CHROME]

1. For chrome users Just go here -https://chrome.google.com/webstore/detail/fb-unseen/ihcedcpmfdpjijiamkaeaefgfagnnpei?hl=en- and click on add to chrome on right hand side of the page and add "FB UNSEEN"to your chrome Webstore.

2.Now just go here-chrome-extension://ihcedcpmfdpjijiamkaeaefgfagnnpei/fancy-settings/source/index.html and chose your needed option for interface,blocks and support.Then save it

[ (B) [MOZILA FIREFOX]

1:First you need to get Grease Monkey for getting  just go here and download

https://addons.mozilla.org/en-US/firefox/addon/greasemonkey/

2.Then you need to have facebook stealth and get it from here-- http://userscripts.org/scripts/show/136261

Now you can navigate away and operate your Facebook chat box by disabling the seen option and your friend will no longer see if you reed their message