Mozilla Firefox - anyone succeeded in installing?

[Mehmet Fatih AKBULUT]

how can i upgrade all ports ?
i also have same problem nowadays.
not able to install firefox or mozilla or opera :(
using freebsd 5.4 too.
but each time i get some lib* error when try to install one of above.
one of error : Shared object "libgobject-2.0.so.600" not found ... etc :(
help me please.
what should i do ?