Hey Chirag,
Quoting Chirag Wazir wazir@vsnl.com:
Sometimes the login page on Hotmail loads up, but logging in doesn't produce any response. In Facebook again, sometimes the login page loads, but doesn't work. In SeaMonkey, sometimes logging in to Facebook does proceed to the home page, but then no other links work.
This is worth a try besides all the others suggested: http://ubuntuforums.org/archive/index.php/t-1110043.html
I have tried googling, but no satisfactory solution showed up.
FWIW, this was the first google hit (your post being the second) http://www.google.com/search?q=ubuntu+facebook+hotmail
My googling philosophy -- unless you know exactly what your are searching for, try the most generic keywords and then filter/refine.
cheers, - steve