Sorry i am new to the forum and i didn't know what to put as a title
Something descriptive of your specific issue---"need advice" tells us nothing. How about
: "facebook chat problem with firefox"
the browser is Firefox, linux lite v1.o.13.e
it is a wireless connection
the chat just comes on then goes of seconds later
Except for chat, does Facebook work correctly?
Is it possible that it needs Flash and/or Java? Do you have both of those installed and working?
Have you tried a different browser?