If You Want To Disable Seen Option In Facebook Chat - Fully Works

Facebook recently update new facility SEEN option in chat box.When you  are chating  with someone on Facebook, and the person read your message, it displays ‘seen’ along with the time when message was read.actually this is a best feature but some times it is problem to it allows your friend to know that your ignoring message from them when your not giving reply back.

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'. Many of my friends and other people asking can we disable seen option in facebook chat?
after my research i said it is possible by adding simple extension to your browser

How to Install FB Unseen:

FOR GOOGLE CHROME:

• Just click here to get FB UNSEEN
• As soon as you click above link you will be geting screen alert like below picture then just click ADD TO CHROME

• when you add this to chrome it get enabled and you can enjoy this feature.

FOR MOZILA FIRE FOX:

There are two ways in firefox to diasble seen option

Method 1:

• First you need to get Grease Monkey.
• Then you have to install FACEBOOK STEALTH(click here)
• Thats it you can enjoy the feature now

Method 2:

• Open your FIREFOX Browser and click CTRL+SHIFT+F
• As soon as you click above code then yu will find screen capture like below
• Then click on 1.CUSTOM FILTERS option then you can find an another option Add Filter Group.
• When you click 2.Add filter group you can find New filter Group having an option Actions.
• Click on 3.Actions then you can see Shoe/Hide filters.
• Again click on Show/Hide filters
• Then add below code in right side just like in picture below

/ajax/mercury/change_read_status.php$domain=facebook.com

For Other browers:

For any other browsers other than Mozila and chrome you just disable seen option by blocking below URL 

• /ajax/mercury/change_read_status.php$domain=facebook.com

You can also use Chat Undetected: for GOOGLE CHROME,FIREFOX and INTERNET EXPLORER

click here to get CHAT UNDETECTED

HOW TO UNINSTALL ADD ONS:

In GOOGLE chrome: 

Just go to extensions and then make it as disable

IN FIREFOX:

just like in CHROME here go to add on and uninstall the extenstion