is there any way to clean old programs?
in the directory /usr/lib althought that i have firefox 3.0.11 installed there are also other firefox folders like firefox 3.0.6 , 3.0.9 , 3.0.10 , 18.104.22.168.
i supposed like i have olders versions of firefox i would also have and others that i havent noticed yet. is there any way to clean them? i suppose it is not safe to start deleting folders.