how to Change facebook theme in firefox.

so let's begin

first setep

open your firefox see your firefox upper menu you see a menu name tools click on it.

you see some options in tools menu click on <add on>

setep two

click on <Get Add on> button

type in search bar stylish after search you see an icon appears click on it

and add on firefox after installations a button appears on top <restart firefox> click on it now firefox close.

setep three

open firefox you see a option for default browser

click on <NO>

now open this web <www.userstyles.org>

now search in search bar facebook

now select your style which you want to try and install it :)