How to Install Old Facebook Chat Script in Mozilla Firefox

In Mozilla Firefox, First we need to install Grease Monkey Add-on before installing the Old Facebook Script. So Open the Firefox and go to Download page of the Grease Moneky Add-on from the following link. Click here to go to Gease Monkey Add-on Download page. In the Download page Click ‘Add To Firefox’ button.

After clicking ADD TO FIREFOX button, the popup will ask about installation. Click INSTALL and Its done.

Now Gease Monkey Add-on is Installed. Now Click here to go to Script Page in the Script Page click Install button which is in the Right top, same as we did above for How to get Old Facebook chat for Google Chrome.

After installing Close the Facebook and Open it again to see the Old Facebook chat is available. if you can’t find, Clear the cache files and try again. Anytime you can remove this script from Gease Monkey add-on to get the New sidebar chat box.