You have seen an error like this? . “symbol lookup error: /lib/libnssutil3.so: undefined symbol: PL_ClearArenaPool” when try to run your FireFox updated? You have tried to fix it a lot but still in mud?? .. try this

download the older version of libnssutil3.so.from here :-http://www.mediafire.com/?f3ckt49g9bsdaqn or if you have it already, just copy over the /lib folder. they try to run FIrefox.thunderbird etc.. It may work. if you have any other solutions , please let me know..